{"title":"CEE 63A","description":"\u003c!-- KUPO Power — CEE 63A (TIER 2 — Mid-Tier Slice, Amperage)\n Shopify Collection Body HTML\n Handle: cee-63a\n URL: https:\/\/kupopower.com\/collections\/cee-63a --\u003e\n\n\u003cp\u003eCEE 63A connectors handle heavy industrial and event power supply up to 63 amperes, primary distribution feeds, stage lighting trees, larger HVAC plant, and the input feed for many portable distribution boards. The 63A rating is most commonly specified in 5-pole (3P+N+E) configuration for full three-phase plus neutral distribution, with 3-pole single-phase variants available for specialty uses. Available in IP44 (sheltered installations) and IP67 (outdoor and wet environments) protection.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eTypical 63A loads at a glance\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cdiv style=\"overflow-x:auto;\"\u003e\n\u003ctable style=\"border-collapse:collapse !important; width:100%; max-width:600px; border:1px solid #999 !important;\"\u003e\n \u003cthead\u003e\n \u003ctr style=\"background:#0072B8 !important; color:#fff !important;\"\u003e\n\u003cth style=\"padding:8px !important; border:1px solid #c0d8ee !important; color:#fff !important; background:#0072B8 !important; text-align:left;\"\u003eApplication\u003c\/th\u003e\n\u003cth style=\"padding:8px !important; border:1px solid #c0d8ee !important; color:#fff !important; background:#0072B8 !important; text-align:left;\"\u003eTypical Pole Config\u003c\/th\u003e\n\u003c\/tr\u003e\n \u003c\/thead\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n\u003ctd style=\"padding:8px !important; border:1px solid #999 !important; font-weight:bold;\"\u003eFestival and event main feeds\u003c\/td\u003e\n\u003ctd style=\"padding:8px !important; border:1px solid #999 !important;\"\u003e5-Pole (3P+N+E)\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd style=\"padding:8px !important; border:1px solid #999 !important; font-weight:bold;\"\u003eStage lighting trees, theatrical rigs\u003c\/td\u003e\n\u003ctd style=\"padding:8px !important; border:1px solid #999 !important;\"\u003e5-Pole (3P+N+E)\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd style=\"padding:8px !important; border:1px solid #999 !important; font-weight:bold;\"\u003eBuilding HVAC plant, large compressors\u003c\/td\u003e\n\u003ctd style=\"padding:8px !important; border:1px solid #999 !important;\"\u003e5-Pole (3P+N+E)\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd style=\"padding:8px !important; border:1px solid #999 !important; font-weight:bold;\"\u003eHeavy single-phase distribution boards\u003c\/td\u003e\n\u003ctd style=\"padding:8px !important; border:1px solid #999 !important;\"\u003e3-Pole (2P+E)\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cp style=\"margin-top:1.25rem;\"\u003eNeed maximum CEE capacity? \u003ca href=\"https:\/\/kupopower.com\/collections\/cee-125a\"\u003e\u003cstrong\u003eBrowse CEE 125A connectors →\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e","products":[{"product_id":"khtn0331","title":"KHTN0331 - KUPO CEE Form 63A 3-Pole Industrial Plug, 230V, IP67","description":"\u003c!-- KUPO Shopify paste-ready combined HTML for KHTN0331 --\u003e\n\u003c!-- Includes product description, Product JSON-LD, FAQ, FAQ JSON-LD, and Download section. --\u003e\n\n\u003cstyle\u003e\n.kupo-section-title {\n margin: 1.25rem 0 1rem 0;\n font-size: 22px !important;\n font-weight: 700;\n line-height: 1.3;\n color: #005F96 !important;\n letter-spacing: 0;\n}\n.product-description h3 {\n color: #005F96 !important;\n font-size: 18px !important;\n font-weight: bold;\n margin-top: 1.5rem;\n margin-bottom: 0.75rem;\n line-height: 1.35;\n letter-spacing: 0;\n}\n.product-description,\n.product-description p,\n.product-description li {\n color: #222222 !important;\n}\n\u003c\/style\u003e\n\n\u003ch2 class=\"kupo-section-title\"\u003eProduct Description\u003c\/h2\u003e\n\u003cdiv class=\"product-description\" data-sku=\"KHTN0331\" data-voltage=\"220-250V\" data-amperage=\"63A\" data-poles=\"3\" data-ip=\"IP67\"\u003e\n\n\n \u003cdiv class=\"product-overview\"\u003e\n \u003cp\u003eBuilt to IEC (International Electrotechnical Commission) 60309-1 and 60309-2 standards, the KUPO KHTN0331 is a 63A CEE form plug (inline male) rated for 220-250V operation with 3-pole (2P+E) configuration. The CE-marked design features a flame-retardant PA6 (Polyamide 6) Nylon housing, nickel-plated brass contacts, and IP67 (Ingress Protection 67) watertight protection. The keyed earth contact at the 6-hour clock position and earth-first\/earth-last engagement sequence ensure safe, foolproof connections across industrial, commercial, and entertainment applications.\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"product-features\"\u003e\n \u003ch3\u003eKey Features\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eProtective earth engages first and releases last, ensuring the ground path is established before live contacts connect\u003c\/li\u003e\n \u003cli\u003eKeyed earth contact at the 6-hour clock position prevents cross-mating with incompatible voltage systems\u003c\/li\u003e\n \u003cli\u003eIP67 watertight housing withstands temporary immersion up to 1 meter and complete dust ingress for harsh outdoor and wet environments\u003c\/li\u003e\n \u003cli\u003eRugged screw-type coupling maximizes mechanical strength and sealing integrity for stable performance in demanding conditions\u003c\/li\u003e\n \u003cli\u003eFlame-retardant PA6 (Polyamide 6) Nylon housing provides high impact resistance, electrical insulation, and self-extinguishing properties\u003c\/li\u003e\n \u003cli\u003eNickel-plated brass contacts deliver corrosion resistance and reliable low-resistance connections at sustained 63A loads\u003c\/li\u003e\n \u003cli\u003eAll terminal screws face the same direction for faster, more intuitive wiring\u003c\/li\u003e\n \u003cli\u003eAnti-loosening fin structure maintains a secure connection even under vibration\u003c\/li\u003e\n \u003cli\u003eBlue-coded housing identifies the 220-250V voltage class per international IEC 60309 color convention\u003c\/li\u003e\n \u003cli\u003eRated for operation from -25 to 40 degrees Celsius\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"product-certifications\"\u003e\n \u003ch3\u003eCertifications \u0026amp; Standards\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eCE Marked: Low Voltage Directive 2014\/35\/EU\u003c\/li\u003e\n \u003cli\u003eIEC\/EN 60309-1: 1999 +A1:2007 +A2:2012. General requirements for industrial plugs, socket-outlets and couplers\u003c\/li\u003e\n \u003cli\u003eIEC\/EN 60309-2: 1999 +A1:2007 +A2:2012. Dimensional compatibility requirements for pin and contact-tube accessories\u003c\/li\u003e\n \u003cli\u003eRoHS Compliant: Directive 2011\/65\/EU and (EU)2015\/863\u003c\/li\u003e\n \u003cli\u003eREACH Compliant: Regulation No 1907\/2006, Article 33(1) Obligation\u003c\/li\u003e\n \u003cli\u003eIP67 Watertight\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"product-applications\"\u003e\n \u003ch3\u003eApplications\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eTemporary and permanent power distribution on construction sites\u003c\/li\u003e\n \u003cli\u003eGeneral-purpose single-phase industrial and commercial power\u003c\/li\u003e\n \u003cli\u003eShore power for boats and marinas\u003c\/li\u003e\n \u003cli\u003eHeavy industrial main distribution feeds and generator connections\u003c\/li\u003e\n \u003cli\u003eSite main incomers and primary power infrastructure\u003c\/li\u003e\n \u003cli\u003eCable assemblies, extension leads, and portable equipment connections\u003c\/li\u003e\n \u003cli\u003eEntertainment and live event production\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"product-compatibility\"\u003e\n \u003ch3\u003eCompatibility\u003c\/h3\u003e\n \u003cp\u003eThe KUPO KHTN0331 is manufactured to IEC 60309-1 and IEC 60309-2 standards, ensuring dimensional compatibility with CEE form connectors from all compliant manufacturers. The 6-hour clock position earth contact permits mating only with connectors of the same 220-250V voltage class, preventing cross-connections between incompatible electrical systems.\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"product-color-conventions\"\u003e\n \u003ch3\u003eVoltage Color Convention\u003c\/h3\u003e\n \u003cimg src=\"\/\/cdn.cybassets.com\/s\/files\/35719\/ckeditor\/pictures\/content_c059c811-5695-42fa-93f2-603bc0fe8739.jpg\" alt=\"IEC 60309 CEE clock face position diagram showing voltage color coding and earth contact positions for 3-pole, 4-pole, and 5-pole configurations\" style=\"max-width: 100%; margin: 1rem 0;\"\u003e\n \u003cp\u003eCEE form connectors use internationally standardized housing colors to indicate voltage class: Yellow for 110-130V, Blue for 200-250V, Red for 380-480V, and Black for 500-690V. The keyed clock position of the earth contact prevents cross-mating between different voltage systems, ensuring only compatible connectors can be joined. Always verify voltage and frequency compatibility with local electrical supply before installation.\u003c\/p\u003e\n \u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003c!-- Product JSON-LD structured data --\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n \"@context\": \"https:\/\/schema.org\",\n \"@type\": \"Product\",\n \"name\": \"KHTN0331 | KUPO CEE Plug 63A 3P 220-250V 6h IP67\",\n \"description\": \"Built to IEC (International Electrotechnical Commission) 60309-1 and 60309-2 standards, the KUPO KHTN0331 is a 63A CEE form plug (inline male) rated for 220-250V operation with 3-pole (2P+E) configuration. The CE-marked design features a flame-retardant PA6 (Polyamide 6) Nylon housing, nickel-plated brass contacts, and IP67 (Ingress Protection 67) watertight protection. The keyed earth contact at the 6-hour clock position and earth-first\/earth-last engagement sequence ensure safe, foolproof connections across industrial, commercial, and entertainment applications.\",\n \"brand\": {\n \"@type\": \"Brand\",\n \"name\": \"KUPO\"\n },\n \"manufacturer\": {\n \"@type\": \"Organization\",\n \"name\": \"KUPO CO. LTD\",\n \"url\": \"https:\/\/www.kupopower.com\"\n },\n \"category\": \"Electrical Connectors \u003e Industrial Plugs \u0026 Sockets \u003e CEE Form (IEC 60309)\",\n \"sku\": \"KHTN0331\",\n \"mpn\": \"KHTN0331\",\n \"color\": \"Blue \u0026 Gray\",\n \"material\": \"PA6 Nylon (Flame Retardant)\",\n \"additionalProperty\": [\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Amperage Rating\",\n \"value\": \"63A Maximum\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Voltage Rating\",\n \"value\": \"AC 220-250V Maximum\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Number of Poles\",\n \"value\": \"3 (2P+E)\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Earth Contact Position\",\n \"value\": \"6h\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Suitable Cable Size\",\n \"value\": \"6-16 mmsq\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Housing Material\",\n \"value\": \"Flame Retardant PA6 Nylon\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Housing Color\",\n \"value\": \"Blue \u0026 Gray\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Contact Material\",\n \"value\": \"Brass with Nickel Plating\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"IP Rating\",\n \"value\": \"IP67 Watertight\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Working Temperature Range\",\n \"value\": \"-25 to 40 degrees Celsius\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Overall Length (A)\",\n \"value\": \"260 mm\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Grip Length (B)\",\n \"value\": \"113.5 mm\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Cable Entry Diameter (C)\",\n \"value\": \"32 mm\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Connector Type\",\n \"value\": \"CEE Form Plug (Inline Male)\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Connection Type\",\n \"value\": \"Screw-type coupling\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Standard\",\n \"value\": \"IEC\/EN 60309-1: 1999 +A1:2007 +A2:2012, IEC\/EN 60309-2: 1999 +A1:2007 +A2:2012\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Certifications\",\n \"value\": \"CE, RoHS, REACH\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Voltage Color Code\",\n \"value\": \"Blue = 220-250V\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"RoHS Compliant\",\n \"value\": \"Yes\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"REACH Compliant\",\n \"value\": \"Yes\"\n }\n ]\n}\n\u003c\/script\u003e\n\n\u003cstyle\u003e\n.kupo-faq-seo-block {\n margin: 3rem 0 0 0;\n padding: 0;\n border: 0;\n background: transparent;\n box-sizing: border-box;\n}\n.kupo-faq-seo-block h2 {\n margin: 0 0 1.6rem 0;\n font-size: 22px !important;\n font-weight: 700;\n line-height: 1.4;\n color: #005F96 !important;\n}\n.kupo-faq-seo-item {\n border-top: 1px solid #ececec;\n padding: 0.8rem 0;\n}\n.kupo-faq-seo-item:first-of-type {\n border-top: 0;\n padding-top: 0;\n}\n.kupo-faq-seo-item h3 {\n margin: 0 0 0.35rem 0;\n font-size: 17px !important;\n font-weight: 600;\n line-height: 1.45;\n color: #005F96 !important;\n}\n.kupo-faq-seo-item p {\n margin: 0;\n line-height: 1.6;\n color: #222222 !important;\n}\n\u003c\/style\u003e\n\u003csection class=\"kupo-faq-seo-block\" data-product-id=\"KHTN0331\" data-category=\"CEE Form (IEC 60309)\"\u003e\n \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n \u003cdiv class=\"kupo-faq-seo-item\"\u003e\n \u003ch3\u003eWhat are the key features and ratings of the KUPO KHTN0331?\u003c\/h3\u003e\n \u003cp\u003eThe KUPO KHTN0331 is a 63A CEE form plug (inline male) built to IEC (International Electrotechnical Commission) 60309-1 and 60309-2 standards for 220-250V single-phase power distribution. It features a 3-pole (2P+E) configuration that carries one live conductor, one neutral conductor, and one protective earth conductor. The flame-retardant PA6 (Polyamide 6) Nylon housing with nickel-plated brass contacts accepts cables from 6-25 mmsq. The IP44-rated housing measures 165 mm overall with a body diameter of 85 mm.\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"kupo-faq-seo-item\"\u003e\n \u003ch3\u003eWhat built-in safety features does the KUPO KHTN0331 provide?\u003c\/h3\u003e\n \u003cp\u003eAs an inline male plug carrying 63A at 220-250V, the KHTN0331 incorporates multiple layers of protection for safe field use. The keyed earth contact at the 6h clock position physically prevents cross-mating with connectors from incompatible voltage systems. The protective earth on this 3-pole (2P+E) connector always engages first and releases last, ensuring the ground path is established before any of the 2 remaining contacts connect. The IP44 (Ingress Protection 44) splash-proof rating protects this inline plug against water splashes and solid objects larger than 1mm during portable field use.\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"kupo-faq-seo-item\"\u003e\n \u003ch3\u003eWhat determines the mating compatibility of the KHTN0331?\u003c\/h3\u003e\n \u003cp\u003eThe KUPO KHTN0331 is manufactured to IEC 60309-1 and IEC 60309-2 dimensional standards, ensuring full interoperability with CEE form connectors from all compliant manufacturers worldwide. To mate correctly, both connectors must share the same amperage rating (63A), voltage class (220-250V), pole configuration (3-pole (2P+E)), and earth contact clock position (6h). The clock position keying acts as a mechanical interlock: a 220-250V connector with a 6h earth position cannot physically engage with a connector keyed to a different clock position, preventing dangerous cross-connections between incompatible electrical systems.\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"kupo-faq-seo-item\"\u003e\n \u003ch3\u003eHow do you open and wire the KUPO KHTN0331 for cable assembly?\u003c\/h3\u003e\n \u003cp\u003eOpen the bayonet twist-lock housing by rotating it counterclockwise, strip the cable conductors to the required length, insert each conductor into its corresponding terminal and tighten the terminal screws. All screws face the same direction for faster, more intuitive wiring. Close the housing by pressing and rotating clockwise until the bayonet locks engage. The KHTN0331 accepts cables from 6-25 mmsq through a 20 mm cable entry opening. The overall body length is 165 mm with a body diameter of 85 mm. The IP44 protection is maintained when the housing is properly closed and the cable gland is correctly tightened.\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"kupo-faq-seo-item\"\u003e\n \u003ch3\u003eIn what environments and industries is the KUPO KHTN0331 commonly used?\u003c\/h3\u003e\n \u003cp\u003eAs a heavy-duty single-phase plug, the KHTN0331 serves main power feeds, industrial switchgear inputs, large motor drives, heavy machinery connections, and large-scale temporary event power distribution. As an inline plug, it is used in cable assemblies, extension leads, and portable equipment connections for general-purpose industrial and commercial power, lighting circuits, workstation feeds, shore power for boats and marinas, and portable equipment connections.\u003c\/p\u003e\n \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n \"@context\": \"https:\/\/schema.org\",\n \"@type\": \"FAQPage\",\n \"mainEntity\": [\n {\n \"@type\": \"Question\",\n \"name\": \"What are the key features and ratings of the KUPO KHTN0331?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"The KUPO KHTN0331 is a 63A CEE form plug (inline male) built to IEC (International Electrotechnical Commission) 60309-1 and 60309-2 standards for 220-250V single-phase power distribution. It features a 3-pole (2P+E) configuration that carries one live conductor, one neutral conductor, and one protective earth conductor. The flame-retardant PA6 (Polyamide 6) Nylon housing with nickel-plated brass contacts accepts cables from 6-25 mmsq. The IP44-rated housing measures 165 mm overall with a body diameter of 85 mm.\"\n }\n },\n {\n \"@type\": \"Question\",\n \"name\": \"What built-in safety features does the KUPO KHTN0331 provide?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"As an inline male plug carrying 63A at 220-250V, the KHTN0331 incorporates multiple layers of protection for safe field use. The keyed earth contact at the 6h clock position physically prevents cross-mating with connectors from incompatible voltage systems. The protective earth on this 3-pole (2P+E) connector always engages first and releases last, ensuring the ground path is established before any of the 2 remaining contacts connect. The IP44 (Ingress Protection 44) splash-proof rating protects this inline plug against water splashes and solid objects larger than 1mm during portable field use.\"\n }\n },\n {\n \"@type\": \"Question\",\n \"name\": \"What determines the mating compatibility of the KHTN0331?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"The KUPO KHTN0331 is manufactured to IEC 60309-1 and IEC 60309-2 dimensional standards, ensuring full interoperability with CEE form connectors from all compliant manufacturers worldwide. To mate correctly, both connectors must share the same amperage rating (63A), voltage class (220-250V), pole configuration (3-pole (2P+E)), and earth contact clock position (6h). The clock position keying acts as a mechanical interlock: a 220-250V connector with a 6h earth position cannot physically engage with a connector keyed to a different clock position, preventing dangerous cross-connections between incompatible electrical systems.\"\n }\n },\n {\n \"@type\": \"Question\",\n \"name\": \"How do you open and wire the KUPO KHTN0331 for cable assembly?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"Open the bayonet twist-lock housing by rotating it counterclockwise, strip the cable conductors to the required length, insert each conductor into its corresponding terminal and tighten the terminal screws. All screws face the same direction for faster, more intuitive wiring. Close the housing by pressing and rotating clockwise until the bayonet locks engage. The KHTN0331 accepts cables from 6-25 mmsq through a 20 mm cable entry opening. The overall body length is 165 mm with a body diameter of 85 mm. The IP44 protection is maintained when the housing is properly closed and the cable gland is correctly tightened.\"\n }\n },\n {\n \"@type\": \"Question\",\n \"name\": \"In what environments and industries is the KUPO KHTN0331 commonly used?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"As a heavy-duty single-phase plug, the KHTN0331 serves main power feeds, industrial switchgear inputs, large motor drives, heavy machinery connections, and large-scale temporary event power distribution. As an inline plug, it is used in cable assemblies, extension leads, and portable equipment connections for general-purpose industrial and commercial power, lighting circuits, workstation feeds, shore power for boats and marinas, and portable equipment connections.\"\n }\n }\n ]\n}\n\u003c\/script\u003e\n\u003c!-- ==================== DOWNLOAD SECTION ==================== --\u003e\n\u003cstyle\u003e\n.kupo-download-section {\n margin: 2rem 0 0 0;\n padding: 0;\n border: 0;\n background: transparent;\n box-sizing: border-box;\n}\n.kupo-download-section h2 {\n margin: 0 0 1rem 0;\n font-size: 22px !important;\n font-weight: 700;\n line-height: 1.4;\n color: #005F96 !important;\n}\n.kupo-download-link {\n display: inline-flex;\n align-items: center;\n gap: 0.4rem;\n font-size: 16px !important;\n line-height: 1.5;\n color: #111111 !important;\n font-weight: 600;\n text-decoration: underline;\n}\n\u003c\/style\u003e\n\u003csection class=\"kupo-download-section\" data-product-id=\"KHTN0331\"\u003e\n \u003ch2\u003eDownload\u003c\/h2\u003e\n \u003ca class=\"kupo-download-link\" href=\"https:\/\/pub-87314d729f334121b80f91e16c4e7f60.r2.dev\/KHTN0331.pdf\" target=\"_blank\" rel=\"noopener\" download\u003e\n Download KHTN0331 Spec Sheet (PDF)\n \u003c\/a\u003e\n\u003c\/section\u003e","brand":"KUPO Power","offers":[{"title":"CEE Industrial (IEC 60309) \/ 63A \/ Inline Connector","offer_id":50208832258268,"sku":"KHTN0331","price":0.0,"currency_code":"TWD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/3491\/5548\/files\/KHTN0331.jpg?v=1777363474"},{"product_id":"khtn0351","title":"KHTN0351 - KUPO CEE Form 63A 5-Pole Industrial Plug, 400V, IP44","description":"\u003c!-- KUPO Shopify paste-ready combined HTML for KHTN0351 --\u003e\n\u003c!-- Includes product description, Product JSON-LD, FAQ, FAQ JSON-LD, and Download section. --\u003e\n\n\u003cstyle\u003e\n.kupo-section-title {\n margin: 1.25rem 0 1rem 0;\n font-size: 22px !important;\n font-weight: 700;\n line-height: 1.3;\n color: #005F96 !important;\n letter-spacing: 0;\n}\n.product-description h3 {\n color: #005F96 !important;\n font-size: 18px !important;\n font-weight: bold;\n margin-top: 1.5rem;\n margin-bottom: 0.75rem;\n line-height: 1.35;\n letter-spacing: 0;\n}\n.product-description,\n.product-description p,\n.product-description li {\n color: #222222 !important;\n}\n\u003c\/style\u003e\n\n\u003ch2 class=\"kupo-section-title\"\u003eProduct Description\u003c\/h2\u003e\n\u003cdiv class=\"product-description\" data-sku=\"KHTN0351\" data-voltage=\"380-415V\" data-amperage=\"63A\" data-poles=\"5\" data-ip=\"IP44\"\u003e\n\n\n \u003cdiv class=\"product-overview\"\u003e\n \u003cp\u003eWith earth-first contact engagement, IP44 (Ingress Protection 44) splash-proof protection, and bayonet twist-lock housing, the KUPO KHTN0351 is a 63A CEE form plug (inline male) engineered for 380-415V power distribution. The flame-retardant PA6 (Polyamide 6) Nylon housing and nickel-plated brass contacts deliver high impact resistance, corrosion protection, and low-resistance electrical paths under sustained 63A loads. The keyed earth contact at the 6-hour clock position prevents cross-mating with incompatible voltage systems, meeting IEC (International Electrotechnical Commission) 60309-1 and 60309-2 standards.\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"product-features\"\u003e\n \u003ch3\u003eKey Features\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eProtective earth engages first and releases last, ensuring the ground path is established before live contacts connect\u003c\/li\u003e\n \u003cli\u003eKeyed earth contact at the 6-hour clock position prevents cross-mating with incompatible voltage systems\u003c\/li\u003e\n \u003cli\u003eIP44 splash-proof housing provides protection against splashing water and solid objects larger than 1mm\u003c\/li\u003e\n \u003cli\u003eTool-free bayonet twist-lock housing enables fast open\/close access for wiring on busy jobsites\u003c\/li\u003e\n \u003cli\u003eFlame-retardant PA6 (Polyamide 6) Nylon housing provides high impact resistance, electrical insulation, and self-extinguishing properties\u003c\/li\u003e\n \u003cli\u003eNickel-plated brass contacts deliver corrosion resistance and reliable low-resistance connections at sustained 63A loads\u003c\/li\u003e\n \u003cli\u003eAll terminal screws face the same direction for faster, more intuitive wiring\u003c\/li\u003e\n \u003cli\u003eAnti-loosening fin structure maintains a secure connection even under vibration\u003c\/li\u003e\n \u003cli\u003eRed-coded housing identifies the 380-415V voltage class per international IEC 60309 color convention\u003c\/li\u003e\n \u003cli\u003eRated for operation from -25 to 40 degrees Celsius\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"product-certifications\"\u003e\n \u003ch3\u003eCertifications \u0026amp; Standards\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eCE Marked: Low Voltage Directive 2014\/35\/EU\u003c\/li\u003e\n \u003cli\u003eIEC\/EN 60309-1: 1999 +A1:2007 +A2:2012. General requirements for industrial plugs, socket-outlets and couplers\u003c\/li\u003e\n \u003cli\u003eIEC\/EN 60309-2: 1999 +A1:2007 +A2:2012. Dimensional compatibility requirements for pin and contact-tube accessories\u003c\/li\u003e\n \u003cli\u003eRoHS Compliant: Directive 2011\/65\/EU and (EU)2015\/863\u003c\/li\u003e\n \u003cli\u003eREACH Compliant: Regulation No 1907\/2006, Article 33(1) Obligation\u003c\/li\u003e\n \u003cli\u003eIP44 Splash-proof\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"product-applications\"\u003e\n \u003ch3\u003eApplications\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eTemporary and permanent power distribution on construction sites\u003c\/li\u003e\n \u003cli\u003eThree-phase heavy machinery, motor drives, and HVAC (Heating, Ventilation, and Air Conditioning) systems\u003c\/li\u003e\n \u003cli\u003eWelding equipment and pump station power supply\u003c\/li\u003e\n \u003cli\u003eHeavy industrial main distribution feeds and generator connections\u003c\/li\u003e\n \u003cli\u003eSite main incomers and primary power infrastructure\u003c\/li\u003e\n \u003cli\u003eCable assemblies, extension leads, and portable equipment connections\u003c\/li\u003e\n \u003cli\u003eEntertainment and live event production\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"product-compatibility\"\u003e\n \u003ch3\u003eCompatibility\u003c\/h3\u003e\n \u003cp\u003eThe KUPO KHTN0351 is manufactured to IEC 60309-1 and IEC 60309-2 standards, ensuring dimensional compatibility with CEE form connectors from all compliant manufacturers. The 6-hour clock position earth contact permits mating only with connectors of the same 380-415V voltage class, preventing cross-connections between incompatible electrical systems.\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"product-color-conventions\"\u003e\n \u003ch3\u003eVoltage Color Convention\u003c\/h3\u003e\n \u003cimg src=\"\/\/cdn.cybassets.com\/s\/files\/35719\/ckeditor\/pictures\/content_c059c811-5695-42fa-93f2-603bc0fe8739.jpg\" alt=\"IEC 60309 CEE clock face position diagram showing voltage color coding and earth contact positions for 3-pole, 4-pole, and 5-pole configurations\" style=\"max-width: 100%; margin: 1rem 0;\"\u003e\n \u003cp\u003eCEE form connectors use internationally standardized housing colors to indicate voltage class: Yellow for 110-130V, Blue for 200-250V, Red for 380-480V, and Black for 500-690V. The keyed clock position of the earth contact prevents cross-mating between different voltage systems, ensuring only compatible connectors can be joined. Always verify voltage and frequency compatibility with local electrical supply before installation.\u003c\/p\u003e\n \u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003c!-- Product JSON-LD structured data --\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n \"@context\": \"https:\/\/schema.org\",\n \"@type\": \"Product\",\n \"name\": \"KHTN0351 | KUPO CEE Plug 63A 5P 380-415V 6h IP44\",\n \"description\": \"With earth-first contact engagement, IP44 (Ingress Protection 44) splash-proof protection, and bayonet twist-lock housing, the KUPO KHTN0351 is a 63A CEE form plug (inline male) engineered for 380-415V power distribution. The flame-retardant PA6 (Polyamide 6) Nylon housing and nickel-plated brass contacts deliver high impact resistance, corrosion protection, and low-resistance electrical paths under sustained 63A loads. The keyed earth contact at the 6-hour clock position prevents cross-mating with incompatible voltage systems, meeting IEC (International Electrotechnical Commission) 60309-1 and 60309-2 standards.\",\n \"brand\": {\n \"@type\": \"Brand\",\n \"name\": \"KUPO\"\n },\n \"manufacturer\": {\n \"@type\": \"Organization\",\n \"name\": \"KUPO CO. LTD\",\n \"url\": \"https:\/\/www.kupopower.com\"\n },\n \"category\": \"Electrical Connectors \u003e Industrial Plugs \u0026 Sockets \u003e CEE Form (IEC 60309)\",\n \"sku\": \"KHTN0351\",\n \"mpn\": \"KHTN0351\",\n \"color\": \"Red \u0026 Gray\",\n \"material\": \"PA6 Nylon (Flame Retardant)\",\n \"additionalProperty\": [\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Amperage Rating\",\n \"value\": \"63A Maximum\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Voltage Rating\",\n \"value\": \"AC 380-415V Maximum\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Number of Poles\",\n \"value\": \"5 (3P+N+E)\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Earth Contact Position\",\n \"value\": \"6h\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Suitable Cable Size\",\n \"value\": \"6-16 mmsq\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Housing Material\",\n \"value\": \"Flame Retardant PA6 Nylon\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Housing Color\",\n \"value\": \"Red \u0026 Gray\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Contact Material\",\n \"value\": \"Brass with Nickel Plating\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"IP Rating\",\n \"value\": \"IP44 Splash-proof\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Working Temperature Range\",\n \"value\": \"-25 to 40 degrees Celsius\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Overall Length (A)\",\n \"value\": \"260 mm\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Grip Length (B)\",\n \"value\": \"113.5 mm\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Cable Entry Diameter (C)\",\n \"value\": \"32 mm\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Connector Type\",\n \"value\": \"CEE Form Plug (Inline Male)\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Connection Type\",\n \"value\": \"Bayonet twist-lock\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Standard\",\n \"value\": \"IEC\/EN 60309-1: 1999 +A1:2007 +A2:2012, IEC\/EN 60309-2: 1999 +A1:2007 +A2:2012\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Certifications\",\n \"value\": \"CE, RoHS, REACH\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Voltage Color Code\",\n \"value\": \"Red = 380-415V\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"RoHS Compliant\",\n \"value\": \"Yes\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"REACH Compliant\",\n \"value\": \"Yes\"\n }\n ]\n}\n\u003c\/script\u003e\n\n\u003cstyle\u003e\n.kupo-faq-seo-block {\n margin: 3rem 0 0 0;\n padding: 0;\n border: 0;\n background: transparent;\n box-sizing: border-box;\n}\n.kupo-faq-seo-block h2 {\n margin: 0 0 1.6rem 0;\n font-size: 22px !important;\n font-weight: 700;\n line-height: 1.4;\n color: #005F96 !important;\n}\n.kupo-faq-seo-item {\n border-top: 1px solid #ececec;\n padding: 0.8rem 0;\n}\n.kupo-faq-seo-item:first-of-type {\n border-top: 0;\n padding-top: 0;\n}\n.kupo-faq-seo-item h3 {\n margin: 0 0 0.35rem 0;\n font-size: 17px !important;\n font-weight: 600;\n line-height: 1.45;\n color: #005F96 !important;\n}\n.kupo-faq-seo-item p {\n margin: 0;\n line-height: 1.6;\n color: #222222 !important;\n}\n\u003c\/style\u003e\n\u003csection class=\"kupo-faq-seo-block\" data-product-id=\"KHTN0351\" data-category=\"CEE Form (IEC 60309)\"\u003e\n \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n \u003cdiv class=\"kupo-faq-seo-item\"\u003e\n \u003ch3\u003eHow is the KUPO KHTN0351 configured and what specifications does it offer?\u003c\/h3\u003e\n \u003cp\u003eThe KUPO KHTN0351 is a 63A CEE form plug (inline male) built to IEC (International Electrotechnical Commission) 60309-1 and 60309-2 standards for 380-415V three-phase power distribution. It features a 5-pole (3P+N+E) configuration that carries three live conductors, one neutral conductor, and one protective earth conductor for complete power distribution. The flame-retardant PA6 (Polyamide 6) Nylon housing with nickel-plated brass contacts accepts cables from 6-25 mmsq. The IP44-rated housing measures 175 mm overall with a body diameter of 105 mm.\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"kupo-faq-seo-item\"\u003e\n \u003ch3\u003eHow does the earth contact design of the KHTN0351 enhance electrical safety?\u003c\/h3\u003e\n \u003cp\u003eAs an inline male plug carrying 63A at 380-415V, the KHTN0351 incorporates multiple layers of protection for safe field use. The keyed earth contact at the 6h clock position physically prevents cross-mating with connectors from incompatible voltage systems. The protective earth on this 5-pole (3P+N+E) connector always engages first and releases last, ensuring the ground path is established before any of the 4 remaining contacts connect. The IP44 (Ingress Protection 44) splash-proof rating protects this inline plug against water splashes and solid objects larger than 1mm during portable field use.\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"kupo-faq-seo-item\"\u003e\n \u003ch3\u003eHow does the IEC 60309 standard ensure the KHTN0351 works in multi-vendor installations?\u003c\/h3\u003e\n \u003cp\u003eThe KUPO KHTN0351 is manufactured to IEC 60309-1 and IEC 60309-2 dimensional standards, ensuring full interoperability with CEE form connectors from all compliant manufacturers worldwide. To mate correctly, both connectors must share the same amperage rating (63A), voltage class (380-415V), pole configuration (5-pole (3P+N+E)), and earth contact clock position (6h). The clock position keying acts as a mechanical interlock: a 380-415V connector with a 6h earth position cannot physically engage with a connector keyed to a different clock position, preventing dangerous cross-connections between incompatible electrical systems.\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"kupo-faq-seo-item\"\u003e\n \u003ch3\u003eWhat cable preparation is needed before wiring the KHTN0351?\u003c\/h3\u003e\n \u003cp\u003eOpen the bayonet twist-lock housing by rotating it counterclockwise, strip the cable conductors to the required length, insert each conductor into its corresponding terminal and tighten the terminal screws. All screws face the same direction for faster, more intuitive wiring. Close the housing by pressing and rotating clockwise until the bayonet locks engage. The KHTN0351 accepts cables from 6-25 mmsq through a 25 mm cable entry opening. The overall body length is 175 mm with a body diameter of 105 mm. The IP44 protection is maintained when the housing is properly closed and the cable gland is correctly tightened.\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"kupo-faq-seo-item\"\u003e\n \u003ch3\u003eWhat types of installations benefit most from the KHTN0351?\u003c\/h3\u003e\n \u003cp\u003eAs a heavy-duty three-phase plug, the KHTN0351 serves main power feeds, industrial switchgear inputs, large motor drives, heavy machinery connections, and large-scale temporary event power distribution. As an inline plug, it is used in cable assemblies, extension leads, and portable equipment connections for heavy machinery and motor drives, industrial HVAC (Heating, Ventilation, and Air Conditioning) systems, welding equipment, pump stations, and large-scale power distribution.\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"kupo-faq-seo-item\"\u003e\n \u003ch3\u003eWhy does the KHTN0351 use a 5-pole configuration instead of 4-pole?\u003c\/h3\u003e\n \u003cp\u003eThe KHTN0351 uses a 5-pole (3P+N+E) configuration that carries three live conductors, one neutral conductor, and one protective earth conductor for complete power distribution. The critical difference from 4-pole (3P+E) is the inclusion of a neutral conductor. A 4-pole connector carries three live phases plus earth, which is sufficient for balanced three-phase loads like motors and pumps. However, when the installation needs to supply both three-phase and single-phase loads from one connection, a neutral conductor is essential. The 5-pole KHTN0351 enables distribution boards and temporary power systems to derive single-phase circuits (line-to-neutral) alongside three-phase feeds, making it the standard choice for event power distribution and mixed-load industrial panels.\u003c\/p\u003e\n \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n \"@context\": \"https:\/\/schema.org\",\n \"@type\": \"FAQPage\",\n \"mainEntity\": [\n {\n \"@type\": \"Question\",\n \"name\": \"How is the KUPO KHTN0351 configured and what specifications does it offer?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"The KUPO KHTN0351 is a 63A CEE form plug (inline male) built to IEC (International Electrotechnical Commission) 60309-1 and 60309-2 standards for 380-415V three-phase power distribution. It features a 5-pole (3P+N+E) configuration that carries three live conductors, one neutral conductor, and one protective earth conductor for complete power distribution. The flame-retardant PA6 (Polyamide 6) Nylon housing with nickel-plated brass contacts accepts cables from 6-25 mmsq. The IP44-rated housing measures 175 mm overall with a body diameter of 105 mm.\"\n }\n },\n {\n \"@type\": \"Question\",\n \"name\": \"How does the earth contact design of the KHTN0351 enhance electrical safety?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"As an inline male plug carrying 63A at 380-415V, the KHTN0351 incorporates multiple layers of protection for safe field use. The keyed earth contact at the 6h clock position physically prevents cross-mating with connectors from incompatible voltage systems. The protective earth on this 5-pole (3P+N+E) connector always engages first and releases last, ensuring the ground path is established before any of the 4 remaining contacts connect. The IP44 (Ingress Protection 44) splash-proof rating protects this inline plug against water splashes and solid objects larger than 1mm during portable field use.\"\n }\n },\n {\n \"@type\": \"Question\",\n \"name\": \"How does the IEC 60309 standard ensure the KHTN0351 works in multi-vendor installations?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"The KUPO KHTN0351 is manufactured to IEC 60309-1 and IEC 60309-2 dimensional standards, ensuring full interoperability with CEE form connectors from all compliant manufacturers worldwide. To mate correctly, both connectors must share the same amperage rating (63A), voltage class (380-415V), pole configuration (5-pole (3P+N+E)), and earth contact clock position (6h). The clock position keying acts as a mechanical interlock: a 380-415V connector with a 6h earth position cannot physically engage with a connector keyed to a different clock position, preventing dangerous cross-connections between incompatible electrical systems.\"\n }\n },\n {\n \"@type\": \"Question\",\n \"name\": \"What cable preparation is needed before wiring the KHTN0351?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"Open the bayonet twist-lock housing by rotating it counterclockwise, strip the cable conductors to the required length, insert each conductor into its corresponding terminal and tighten the terminal screws. All screws face the same direction for faster, more intuitive wiring. Close the housing by pressing and rotating clockwise until the bayonet locks engage. The KHTN0351 accepts cables from 6-25 mmsq through a 25 mm cable entry opening. The overall body length is 175 mm with a body diameter of 105 mm. The IP44 protection is maintained when the housing is properly closed and the cable gland is correctly tightened.\"\n }\n },\n {\n \"@type\": \"Question\",\n \"name\": \"What types of installations benefit most from the KHTN0351?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"As a heavy-duty three-phase plug, the KHTN0351 serves main power feeds, industrial switchgear inputs, large motor drives, heavy machinery connections, and large-scale temporary event power distribution. As an inline plug, it is used in cable assemblies, extension leads, and portable equipment connections for heavy machinery and motor drives, industrial HVAC (Heating, Ventilation, and Air Conditioning) systems, welding equipment, pump stations, and large-scale power distribution.\"\n }\n },\n {\n \"@type\": \"Question\",\n \"name\": \"Why does the KHTN0351 use a 5-pole configuration instead of 4-pole?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"The KHTN0351 uses a 5-pole (3P+N+E) configuration that carries three live conductors, one neutral conductor, and one protective earth conductor for complete power distribution. The critical difference from 4-pole (3P+E) is the inclusion of a neutral conductor. A 4-pole connector carries three live phases plus earth, which is sufficient for balanced three-phase loads like motors and pumps. However, when the installation needs to supply both three-phase and single-phase loads from one connection, a neutral conductor is essential. The 5-pole KHTN0351 enables distribution boards and temporary power systems to derive single-phase circuits (line-to-neutral) alongside three-phase feeds, making it the standard choice for event power distribution and mixed-load industrial panels.\"\n }\n }\n ]\n}\n\u003c\/script\u003e\n\u003c!-- ==================== DOWNLOAD SECTION ==================== --\u003e\n\u003cstyle\u003e\n.kupo-download-section {\n margin: 2rem 0 0 0;\n padding: 0;\n border: 0;\n background: transparent;\n box-sizing: border-box;\n}\n.kupo-download-section h2 {\n margin: 0 0 1rem 0;\n font-size: 22px !important;\n font-weight: 700;\n line-height: 1.4;\n color: #005F96 !important;\n}\n.kupo-download-link {\n display: inline-flex;\n align-items: center;\n gap: 0.4rem;\n font-size: 16px !important;\n line-height: 1.5;\n color: #111111 !important;\n font-weight: 600;\n text-decoration: underline;\n}\n\u003c\/style\u003e\n\u003csection class=\"kupo-download-section\" data-product-id=\"KHTN0351\"\u003e\n \u003ch2\u003eDownload\u003c\/h2\u003e\n \u003ca class=\"kupo-download-link\" href=\"https:\/\/pub-87314d729f334121b80f91e16c4e7f60.r2.dev\/KHTN0351.pdf\" target=\"_blank\" rel=\"noopener\" download\u003e\n Download KHTN0351 Spec Sheet (PDF)\n \u003c\/a\u003e\n\u003c\/section\u003e","brand":"KUPO Power","offers":[{"title":"CEE Industrial (IEC 60309) \/ 63A \/ Inline Connector","offer_id":50208832291036,"sku":"KHTN0351","price":0.0,"currency_code":"TWD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/3491\/5548\/files\/KHTN0351.jpg?v=1777363475"},{"product_id":"khtn2331","title":"KHTN2331 - KUPO CEE Form 63A 3-Pole Industrial Connector, 230V, IP44","description":"\u003c!-- KUPO Shopify paste-ready combined HTML for KHTN2331 --\u003e\n\u003c!-- Includes product description, Product JSON-LD, FAQ, FAQ JSON-LD, and Download section. --\u003e\n\n\u003cstyle\u003e\n.kupo-section-title {\n margin: 1.25rem 0 1rem 0;\n font-size: 22px !important;\n font-weight: 700;\n line-height: 1.3;\n color: #005F96 !important;\n letter-spacing: 0;\n}\n.product-description h3 {\n color: #005F96 !important;\n font-size: 18px !important;\n font-weight: bold;\n margin-top: 1.5rem;\n margin-bottom: 0.75rem;\n line-height: 1.35;\n letter-spacing: 0;\n}\n.product-description,\n.product-description p,\n.product-description li {\n color: #222222 !important;\n}\n\u003c\/style\u003e\n\n\u003ch2 class=\"kupo-section-title\"\u003eProduct Description\u003c\/h2\u003e\n\u003cdiv class=\"product-description\" data-sku=\"KHTN2331\" data-voltage=\"220-250V\" data-amperage=\"63A\" data-poles=\"3\" data-ip=\"IP44\"\u003e\n\n\n \u003cdiv class=\"product-overview\"\u003e\n \u003cp\u003eWith earth-first contact engagement, IP44 (Ingress Protection 44) splash-proof protection, and bayonet twist-lock housing, the KUPO KHTN2331 is a 63A CEE form connector (inline female) engineered for 220-250V power distribution. The flame-retardant PA6 (Polyamide 6) Nylon housing and nickel-plated brass contacts deliver high impact resistance, corrosion protection, and low-resistance electrical paths under sustained 63A loads. The keyed earth contact at the 6-hour clock position prevents cross-mating with incompatible voltage systems, meeting IEC (International Electrotechnical Commission) 60309-1 and 60309-2 standards.\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"product-features\"\u003e\n \u003ch3\u003eKey Features\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eProtective earth engages first and releases last, ensuring the ground path is established before live contacts connect\u003c\/li\u003e\n \u003cli\u003eKeyed earth contact at the 6-hour clock position prevents cross-mating with incompatible voltage systems\u003c\/li\u003e\n \u003cli\u003eIP44 splash-proof housing provides protection against splashing water and solid objects larger than 1mm\u003c\/li\u003e\n \u003cli\u003eTool-free bayonet twist-lock housing enables fast open\/close access for wiring on busy jobsites\u003c\/li\u003e\n \u003cli\u003eFlame-retardant PA6 (Polyamide 6) Nylon housing provides high impact resistance, electrical insulation, and self-extinguishing properties\u003c\/li\u003e\n \u003cli\u003eNickel-plated brass contacts deliver corrosion resistance and reliable low-resistance connections at sustained 63A loads\u003c\/li\u003e\n \u003cli\u003eAll terminal screws face the same direction for faster, more intuitive wiring\u003c\/li\u003e\n \u003cli\u003eAnti-loosening fin structure maintains a secure connection even under vibration\u003c\/li\u003e\n \u003cli\u003eBlue-coded housing identifies the 220-250V voltage class per international IEC 60309 color convention\u003c\/li\u003e\n \u003cli\u003eRated for operation from -25 to 40 degrees Celsius\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"product-certifications\"\u003e\n \u003ch3\u003eCertifications \u0026amp; Standards\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eCE Marked: Low Voltage Directive 2014\/35\/EU\u003c\/li\u003e\n \u003cli\u003eIEC\/EN 60309-1: 1999 +A1:2007 +A2:2012. General requirements for industrial plugs, socket-outlets and couplers\u003c\/li\u003e\n \u003cli\u003eIEC\/EN 60309-2: 1999 +A1:2007 +A2:2012. Dimensional compatibility requirements for pin and contact-tube accessories\u003c\/li\u003e\n \u003cli\u003eRoHS Compliant: Directive 2011\/65\/EU and (EU)2015\/863\u003c\/li\u003e\n \u003cli\u003eREACH Compliant: Regulation No 1907\/2006, Article 33(1) Obligation\u003c\/li\u003e\n \u003cli\u003eIP44 Splash-proof\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"product-applications\"\u003e\n \u003ch3\u003eApplications\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eTemporary and permanent power distribution on construction sites\u003c\/li\u003e\n \u003cli\u003eGeneral-purpose single-phase industrial and commercial power\u003c\/li\u003e\n \u003cli\u003eShore power for boats and marinas\u003c\/li\u003e\n \u003cli\u003eHeavy industrial main distribution feeds and generator connections\u003c\/li\u003e\n \u003cli\u003eSite main incomers and primary power infrastructure\u003c\/li\u003e\n \u003cli\u003eCable assemblies, extension leads, and portable equipment connections\u003c\/li\u003e\n \u003cli\u003eEntertainment and live event production\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"product-compatibility\"\u003e\n \u003ch3\u003eCompatibility\u003c\/h3\u003e\n \u003cp\u003eThe KUPO KHTN2331 is manufactured to IEC 60309-1 and IEC 60309-2 standards, ensuring dimensional compatibility with CEE form connectors from all compliant manufacturers. The 6-hour clock position earth contact permits mating only with connectors of the same 220-250V voltage class, preventing cross-connections between incompatible electrical systems.\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"product-color-conventions\"\u003e\n \u003ch3\u003eVoltage Color Convention\u003c\/h3\u003e\n \u003cimg src=\"\/\/cdn.cybassets.com\/s\/files\/35719\/ckeditor\/pictures\/content_c059c811-5695-42fa-93f2-603bc0fe8739.jpg\" alt=\"IEC 60309 CEE clock face position diagram showing voltage color coding and earth contact positions for 3-pole, 4-pole, and 5-pole configurations\" style=\"max-width: 100%; margin: 1rem 0;\"\u003e\n \u003cp\u003eCEE form connectors use internationally standardized housing colors to indicate voltage class: Yellow for 110-130V, Blue for 200-250V, Red for 380-480V, and Black for 500-690V. The keyed clock position of the earth contact prevents cross-mating between different voltage systems, ensuring only compatible connectors can be joined. Always verify voltage and frequency compatibility with local electrical supply before installation.\u003c\/p\u003e\n \u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003c!-- Product JSON-LD structured data --\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n \"@context\": \"https:\/\/schema.org\",\n \"@type\": \"Product\",\n \"name\": \"KHTN2331 | KUPO CEE Connector 63A 3P 220-250V 6h IP44\",\n \"description\": \"With earth-first contact engagement, IP44 (Ingress Protection 44) splash-proof protection, and bayonet twist-lock housing, the KUPO KHTN2331 is a 63A CEE form connector (inline female) engineered for 220-250V power distribution. The flame-retardant PA6 (Polyamide 6) Nylon housing and nickel-plated brass contacts deliver high impact resistance, corrosion protection, and low-resistance electrical paths under sustained 63A loads. The keyed earth contact at the 6-hour clock position prevents cross-mating with incompatible voltage systems, meeting IEC (International Electrotechnical Commission) 60309-1 and 60309-2 standards.\",\n \"brand\": {\n \"@type\": \"Brand\",\n \"name\": \"KUPO\"\n },\n \"manufacturer\": {\n \"@type\": \"Organization\",\n \"name\": \"KUPO CO. LTD\",\n \"url\": \"https:\/\/www.kupopower.com\"\n },\n \"category\": \"Electrical Connectors \u003e Industrial Plugs \u0026 Sockets \u003e CEE Form (IEC 60309)\",\n \"sku\": \"KHTN2331\",\n \"mpn\": \"KHTN2331\",\n \"color\": \"Blue \u0026 Gray\",\n \"material\": \"PA6 Nylon (Flame Retardant)\",\n \"additionalProperty\": [\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Amperage Rating\",\n \"value\": \"63A Maximum\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Voltage Rating\",\n \"value\": \"AC 220-250V Maximum\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Number of Poles\",\n \"value\": \"3 (2P+E)\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Earth Contact Position\",\n \"value\": \"6h\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Suitable Cable Size\",\n \"value\": \"6-16 mmsq\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Housing Material\",\n \"value\": \"Flame Retardant PA6 Nylon\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Housing Color\",\n \"value\": \"Blue \u0026 Gray\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Contact Material\",\n \"value\": \"Brass with Nickel Plating\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"IP Rating\",\n \"value\": \"IP44 Splash-proof\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Working Temperature Range\",\n \"value\": \"-25 to 40 degrees Celsius\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Overall Length (A)\",\n \"value\": \"260 mm\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Grip Length (B)\",\n \"value\": \"113.5 mm\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Cable Entry Diameter (C)\",\n \"value\": \"32 mm\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Body Diameter (D)\",\n \"value\": \"111 mm\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Connector Type\",\n \"value\": \"CEE Form Connector (Inline Female)\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Connection Type\",\n \"value\": \"Bayonet twist-lock\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Standard\",\n \"value\": \"IEC\/EN 60309-1: 1999 +A1:2007 +A2:2012, IEC\/EN 60309-2: 1999 +A1:2007 +A2:2012\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Certifications\",\n \"value\": \"CE, RoHS, REACH\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Voltage Color Code\",\n \"value\": \"Blue = 220-250V\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"RoHS Compliant\",\n \"value\": \"Yes\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"REACH Compliant\",\n \"value\": \"Yes\"\n }\n ]\n}\n\u003c\/script\u003e\n\n\u003cstyle\u003e\n.kupo-faq-seo-block {\n margin: 3rem 0 0 0;\n padding: 0;\n border: 0;\n background: transparent;\n box-sizing: border-box;\n}\n.kupo-faq-seo-block h2 {\n margin: 0 0 1.6rem 0;\n font-size: 22px !important;\n font-weight: 700;\n line-height: 1.4;\n color: #005F96 !important;\n}\n.kupo-faq-seo-item {\n border-top: 1px solid #ececec;\n padding: 0.8rem 0;\n}\n.kupo-faq-seo-item:first-of-type {\n border-top: 0;\n padding-top: 0;\n}\n.kupo-faq-seo-item h3 {\n margin: 0 0 0.35rem 0;\n font-size: 17px !important;\n font-weight: 600;\n line-height: 1.45;\n color: #005F96 !important;\n}\n.kupo-faq-seo-item p {\n margin: 0;\n line-height: 1.6;\n color: #222222 !important;\n}\n\u003c\/style\u003e\n\u003csection class=\"kupo-faq-seo-block\" data-product-id=\"KHTN2331\" data-category=\"CEE Form (IEC 60309)\"\u003e\n \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n \u003cdiv class=\"kupo-faq-seo-item\"\u003e\n \u003ch3\u003eWhat makes the KUPO KHTN2331 suitable for its intended applications?\u003c\/h3\u003e\n \u003cp\u003eThe KUPO KHTN2331 is a 63A CEE form connector (inline female) built to IEC (International Electrotechnical Commission) 60309-1 and 60309-2 standards for 220-250V single-phase power distribution. It features a 3-pole (2P+E) configuration that carries one live conductor, one neutral conductor, and one protective earth conductor. The flame-retardant PA6 (Polyamide 6) Nylon housing with nickel-plated brass contacts accepts cables from 6-25 mmsq. The IP44-rated housing measures 175 mm overall with a body diameter of 85 mm.\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"kupo-faq-seo-item\"\u003e\n \u003ch3\u003eHow does the KHTN2331 protect against cross-mating with incompatible voltage systems?\u003c\/h3\u003e\n \u003cp\u003eThe KHTN2331 connector (inline female), rated for 63A at 220-250V, includes integrated safety mechanisms to protect both the operator and connected equipment. The keyed earth contact at the 6h clock position physically prevents cross-mating with connectors from incompatible voltage systems. The protective earth on this 3-pole (2P+E) connector always engages first and releases last, ensuring the ground path is established before any of the 2 remaining contacts connect. The IP44 (Ingress Protection 44) splash-proof rating protects this inline connector against water splashes and solid objects larger than 1mm during portable field use.\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"kupo-faq-seo-item\"\u003e\n \u003ch3\u003eCan the KUPO KHTN2331 be used with non-KUPO IEC 60309 connectors?\u003c\/h3\u003e\n \u003cp\u003eThe KUPO KHTN2331 is manufactured to IEC 60309-1 and IEC 60309-2 dimensional standards, ensuring full interoperability with CEE form connectors from all compliant manufacturers worldwide. To mate correctly, both connectors must share the same amperage rating (63A), voltage class (220-250V), pole configuration (3-pole (2P+E)), and earth contact clock position (6h). The clock position keying acts as a mechanical interlock: a 220-250V connector with a 6h earth position cannot physically engage with a connector keyed to a different clock position, preventing dangerous cross-connections between incompatible electrical systems.\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"kupo-faq-seo-item\"\u003e\n \u003ch3\u003eWhat steps are involved in preparing and wiring the KHTN2331?\u003c\/h3\u003e\n \u003cp\u003eOpen the bayonet twist-lock housing, prepare the cable by stripping conductors to the specified length, and secure each conductor in its terminal. The contact tubes inside the connector receive the plug's pins during mating. Close the housing by pressing and rotating clockwise until the bayonet locks click into place. The KHTN2331 accepts cables from 6-25 mmsq through a 20 mm cable entry opening. The overall body length is 175 mm with a body diameter of 85 mm. The IP44 protection is maintained when the housing is properly closed and the cable gland is correctly tightened.\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"kupo-faq-seo-item\"\u003e\n \u003ch3\u003eWhat real-world scenarios call for the KHTN2331?\u003c\/h3\u003e\n \u003cp\u003eAs a heavy-duty single-phase connector, the KHTN2331 serves main power feeds, industrial switchgear inputs, large motor drives, heavy machinery connections, and large-scale temporary event power distribution. As an inline connector, it is used in cable assemblies, extension leads, and portable equipment connections for general-purpose industrial and commercial power, lighting circuits, workstation feeds, shore power for boats and marinas, and portable equipment connections.\u003c\/p\u003e\n \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n \"@context\": \"https:\/\/schema.org\",\n \"@type\": \"FAQPage\",\n \"mainEntity\": [\n {\n \"@type\": \"Question\",\n \"name\": \"What makes the KUPO KHTN2331 suitable for its intended applications?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"The KUPO KHTN2331 is a 63A CEE form connector (inline female) built to IEC (International Electrotechnical Commission) 60309-1 and 60309-2 standards for 220-250V single-phase power distribution. It features a 3-pole (2P+E) configuration that carries one live conductor, one neutral conductor, and one protective earth conductor. The flame-retardant PA6 (Polyamide 6) Nylon housing with nickel-plated brass contacts accepts cables from 6-25 mmsq. The IP44-rated housing measures 175 mm overall with a body diameter of 85 mm.\"\n }\n },\n {\n \"@type\": \"Question\",\n \"name\": \"How does the KHTN2331 protect against cross-mating with incompatible voltage systems?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"The KHTN2331 connector (inline female), rated for 63A at 220-250V, includes integrated safety mechanisms to protect both the operator and connected equipment. The keyed earth contact at the 6h clock position physically prevents cross-mating with connectors from incompatible voltage systems. The protective earth on this 3-pole (2P+E) connector always engages first and releases last, ensuring the ground path is established before any of the 2 remaining contacts connect. The IP44 (Ingress Protection 44) splash-proof rating protects this inline connector against water splashes and solid objects larger than 1mm during portable field use.\"\n }\n },\n {\n \"@type\": \"Question\",\n \"name\": \"Can the KUPO KHTN2331 be used with non-KUPO IEC 60309 connectors?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"The KUPO KHTN2331 is manufactured to IEC 60309-1 and IEC 60309-2 dimensional standards, ensuring full interoperability with CEE form connectors from all compliant manufacturers worldwide. To mate correctly, both connectors must share the same amperage rating (63A), voltage class (220-250V), pole configuration (3-pole (2P+E)), and earth contact clock position (6h). The clock position keying acts as a mechanical interlock: a 220-250V connector with a 6h earth position cannot physically engage with a connector keyed to a different clock position, preventing dangerous cross-connections between incompatible electrical systems.\"\n }\n },\n {\n \"@type\": \"Question\",\n \"name\": \"What steps are involved in preparing and wiring the KHTN2331?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"Open the bayonet twist-lock housing, prepare the cable by stripping conductors to the specified length, and secure each conductor in its terminal. The contact tubes inside the connector receive the plug's pins during mating. Close the housing by pressing and rotating clockwise until the bayonet locks click into place. The KHTN2331 accepts cables from 6-25 mmsq through a 20 mm cable entry opening. The overall body length is 175 mm with a body diameter of 85 mm. The IP44 protection is maintained when the housing is properly closed and the cable gland is correctly tightened.\"\n }\n },\n {\n \"@type\": \"Question\",\n \"name\": \"What real-world scenarios call for the KHTN2331?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"As a heavy-duty single-phase connector, the KHTN2331 serves main power feeds, industrial switchgear inputs, large motor drives, heavy machinery connections, and large-scale temporary event power distribution. As an inline connector, it is used in cable assemblies, extension leads, and portable equipment connections for general-purpose industrial and commercial power, lighting circuits, workstation feeds, shore power for boats and marinas, and portable equipment connections.\"\n }\n }\n ]\n}\n\u003c\/script\u003e\n\u003c!-- ==================== DOWNLOAD SECTION ==================== --\u003e\n\u003cstyle\u003e\n.kupo-download-section {\n margin: 2rem 0 0 0;\n padding: 0;\n border: 0;\n background: transparent;\n box-sizing: border-box;\n}\n.kupo-download-section h2 {\n margin: 0 0 1rem 0;\n font-size: 22px !important;\n font-weight: 700;\n line-height: 1.4;\n color: #005F96 !important;\n}\n.kupo-download-link {\n display: inline-flex;\n align-items: center;\n gap: 0.4rem;\n font-size: 16px !important;\n line-height: 1.5;\n color: #111111 !important;\n font-weight: 600;\n text-decoration: underline;\n}\n\u003c\/style\u003e\n\u003csection class=\"kupo-download-section\" data-product-id=\"KHTN2331\"\u003e\n \u003ch2\u003eDownload\u003c\/h2\u003e\n \u003ca class=\"kupo-download-link\" href=\"https:\/\/pub-87314d729f334121b80f91e16c4e7f60.r2.dev\/KHTN2331.pdf\" target=\"_blank\" rel=\"noopener\" download\u003e\n Download KHTN2331 Spec Sheet (PDF)\n \u003c\/a\u003e\n\u003c\/section\u003e","brand":"KUPO Power","offers":[{"title":"CEE Industrial (IEC 60309) \/ 63A \/ Inline Connector","offer_id":50208832356572,"sku":"KHTN2331","price":0.0,"currency_code":"TWD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/3491\/5548\/files\/KHTN2331.jpg?v=1777363477"},{"product_id":"khtn2351","title":"KHTN2351 - KUPO CEE Form 63A 5-Pole Industrial Connector, 400V, IP67","description":"\u003c!-- KUPO Shopify paste-ready combined HTML for KHTN2351 --\u003e\n\u003c!-- Includes product description, Product JSON-LD, FAQ, FAQ JSON-LD, and Download section. --\u003e\n\n\u003cstyle\u003e\n.kupo-section-title {\n margin: 1.25rem 0 1rem 0;\n font-size: 22px !important;\n font-weight: 700;\n line-height: 1.3;\n color: #005F96 !important;\n letter-spacing: 0;\n}\n.product-description h3 {\n color: #005F96 !important;\n font-size: 18px !important;\n font-weight: bold;\n margin-top: 1.5rem;\n margin-bottom: 0.75rem;\n line-height: 1.35;\n letter-spacing: 0;\n}\n.product-description,\n.product-description p,\n.product-description li {\n color: #222222 !important;\n}\n\u003c\/style\u003e\n\n\u003ch2 class=\"kupo-section-title\"\u003eProduct Description\u003c\/h2\u003e\n\u003cdiv class=\"product-description\" data-sku=\"KHTN2351\" data-voltage=\"380-415V\" data-amperage=\"63A\" data-poles=\"5\" data-ip=\"IP67\"\u003e\n\n\n \u003cdiv class=\"product-overview\"\u003e\n \u003cp\u003ePart of KUPO's complete CEE form connector range spanning 16A to 125A and 110V to 400V, the KHTN2351 is a 63A connector (inline female) designed for 380-415V 5-pole (3P+N+E) circuits. Like every connector in the range, it features a flame-retardant PA6 (Polyamide 6) Nylon housing, nickel-plated brass contacts, and IP67 (Ingress Protection 67) watertight protection. The keyed earth contact at the 6-hour clock position and earth-first\/earth-last engagement sequence comply with IEC (International Electrotechnical Commission) 60309-1 and 60309-2 standards, ensuring safe interoperability with any compliant CEE connector.\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"product-features\"\u003e\n \u003ch3\u003eKey Features\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eProtective earth engages first and releases last, ensuring the ground path is established before live contacts connect\u003c\/li\u003e\n \u003cli\u003eKeyed earth contact at the 6-hour clock position prevents cross-mating with incompatible voltage systems\u003c\/li\u003e\n \u003cli\u003eIP67 watertight housing withstands temporary immersion up to 1 meter and complete dust ingress for harsh outdoor and wet environments\u003c\/li\u003e\n \u003cli\u003eRugged screw-type coupling maximizes mechanical strength and sealing integrity for stable performance in demanding conditions\u003c\/li\u003e\n \u003cli\u003eFlame-retardant PA6 (Polyamide 6) Nylon housing provides high impact resistance, electrical insulation, and self-extinguishing properties\u003c\/li\u003e\n \u003cli\u003eNickel-plated brass contacts deliver corrosion resistance and reliable low-resistance connections at sustained 63A loads\u003c\/li\u003e\n \u003cli\u003eAll terminal screws face the same direction for faster, more intuitive wiring\u003c\/li\u003e\n \u003cli\u003eAnti-loosening fin structure maintains a secure connection even under vibration\u003c\/li\u003e\n \u003cli\u003eRed-coded housing identifies the 380-415V voltage class per international IEC 60309 color convention\u003c\/li\u003e\n \u003cli\u003eRated for operation from -25 to 40 degrees Celsius\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"product-certifications\"\u003e\n \u003ch3\u003eCertifications \u0026amp; Standards\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eCE Marked: Low Voltage Directive 2014\/35\/EU\u003c\/li\u003e\n \u003cli\u003eIEC\/EN 60309-1: 1999 +A1:2007 +A2:2012. General requirements for industrial plugs, socket-outlets and couplers\u003c\/li\u003e\n \u003cli\u003eIEC\/EN 60309-2: 1999 +A1:2007 +A2:2012. Dimensional compatibility requirements for pin and contact-tube accessories\u003c\/li\u003e\n \u003cli\u003eRoHS Compliant: Directive 2011\/65\/EU and (EU)2015\/863\u003c\/li\u003e\n \u003cli\u003eREACH Compliant: Regulation No 1907\/2006, Article 33(1) Obligation\u003c\/li\u003e\n \u003cli\u003eIP67 Watertight\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"product-applications\"\u003e\n \u003ch3\u003eApplications\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eTemporary and permanent power distribution on construction sites\u003c\/li\u003e\n \u003cli\u003eThree-phase heavy machinery, motor drives, and HVAC (Heating, Ventilation, and Air Conditioning) systems\u003c\/li\u003e\n \u003cli\u003eWelding equipment and pump station power supply\u003c\/li\u003e\n \u003cli\u003eHeavy industrial main distribution feeds and generator connections\u003c\/li\u003e\n \u003cli\u003eSite main incomers and primary power infrastructure\u003c\/li\u003e\n \u003cli\u003eCable assemblies, extension leads, and portable equipment connections\u003c\/li\u003e\n \u003cli\u003eEntertainment and live event production\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"product-compatibility\"\u003e\n \u003ch3\u003eCompatibility\u003c\/h3\u003e\n \u003cp\u003eThe KUPO KHTN2351 is manufactured to IEC 60309-1 and IEC 60309-2 standards, ensuring dimensional compatibility with CEE form connectors from all compliant manufacturers. The 6-hour clock position earth contact permits mating only with connectors of the same 380-415V voltage class, preventing cross-connections between incompatible electrical systems.\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"product-color-conventions\"\u003e\n \u003ch3\u003eVoltage Color Convention\u003c\/h3\u003e\n \u003cimg src=\"\/\/cdn.cybassets.com\/s\/files\/35719\/ckeditor\/pictures\/content_c059c811-5695-42fa-93f2-603bc0fe8739.jpg\" alt=\"IEC 60309 CEE clock face position diagram showing voltage color coding and earth contact positions for 3-pole, 4-pole, and 5-pole configurations\" style=\"max-width: 100%; margin: 1rem 0;\"\u003e\n \u003cp\u003eCEE form connectors use internationally standardized housing colors to indicate voltage class: Yellow for 110-130V, Blue for 200-250V, Red for 380-480V, and Black for 500-690V. The keyed clock position of the earth contact prevents cross-mating between different voltage systems, ensuring only compatible connectors can be joined. Always verify voltage and frequency compatibility with local electrical supply before installation.\u003c\/p\u003e\n \u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003c!-- Product JSON-LD structured data --\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n \"@context\": \"https:\/\/schema.org\",\n \"@type\": \"Product\",\n \"name\": \"KHTN2351 | KUPO CEE Connector 63A 5P 380-415V 6h IP67\",\n \"description\": \"Part of KUPO's complete CEE form connector range spanning 16A to 125A and 110V to 400V, the KHTN2351 is a 63A connector (inline female) designed for 380-415V 5-pole (3P+N+E) circuits. Like every connector in the range, it features a flame-retardant PA6 (Polyamide 6) Nylon housing, nickel-plated brass contacts, and IP67 (Ingress Protection 67) watertight protection. The keyed earth contact at the 6-hour clock position and earth-first\/earth-last engagement sequence comply with IEC (International Electrotechnical Commission) 60309-1 and 60309-2 standards, ensuring safe interoperability with any compliant CEE connector.\",\n \"brand\": {\n \"@type\": \"Brand\",\n \"name\": \"KUPO\"\n },\n \"manufacturer\": {\n \"@type\": \"Organization\",\n \"name\": \"KUPO CO. LTD\",\n \"url\": \"https:\/\/www.kupopower.com\"\n },\n \"category\": \"Electrical Connectors \u003e Industrial Plugs \u0026 Sockets \u003e CEE Form (IEC 60309)\",\n \"sku\": \"KHTN2351\",\n \"mpn\": \"KHTN2351\",\n \"color\": \"Red \u0026 Gray\",\n \"material\": \"PA6 Nylon (Flame Retardant)\",\n \"additionalProperty\": [\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Amperage Rating\",\n \"value\": \"63A Maximum\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Voltage Rating\",\n \"value\": \"AC 380-415V Maximum\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Number of Poles\",\n \"value\": \"5 (3P+N+E)\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Earth Contact Position\",\n \"value\": \"6h\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Suitable Cable Size\",\n \"value\": \"6-16 mmsq\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Housing Material\",\n \"value\": \"Flame Retardant PA6 Nylon\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Housing Color\",\n \"value\": \"Red \u0026 Gray\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Contact Material\",\n \"value\": \"Brass with Nickel Plating\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"IP Rating\",\n \"value\": \"IP67 Watertight\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Working Temperature Range\",\n \"value\": \"-25 to 40 degrees Celsius\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Overall Length (A)\",\n \"value\": \"260 mm\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Grip Length (B)\",\n \"value\": \"113.5 mm\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Cable Entry Diameter (C)\",\n \"value\": \"32 mm\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Body Diameter (D)\",\n \"value\": \"111 mm\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Connector Type\",\n \"value\": \"CEE Form Connector (Inline Female)\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Connection Type\",\n \"value\": \"Screw-type coupling\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Standard\",\n \"value\": \"IEC\/EN 60309-1: 1999 +A1:2007 +A2:2012, IEC\/EN 60309-2: 1999 +A1:2007 +A2:2012\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Certifications\",\n \"value\": \"CE, RoHS, REACH\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Voltage Color Code\",\n \"value\": \"Red = 380-415V\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"RoHS Compliant\",\n \"value\": \"Yes\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"REACH Compliant\",\n \"value\": \"Yes\"\n }\n ]\n}\n\u003c\/script\u003e\n\n\u003cstyle\u003e\n.kupo-faq-seo-block {\n margin: 3rem 0 0 0;\n padding: 0;\n border: 0;\n background: transparent;\n box-sizing: border-box;\n}\n.kupo-faq-seo-block h2 {\n margin: 0 0 1.6rem 0;\n font-size: 22px !important;\n font-weight: 700;\n line-height: 1.4;\n color: #005F96 !important;\n}\n.kupo-faq-seo-item {\n border-top: 1px solid #ececec;\n padding: 0.8rem 0;\n}\n.kupo-faq-seo-item:first-of-type {\n border-top: 0;\n padding-top: 0;\n}\n.kupo-faq-seo-item h3 {\n margin: 0 0 0.35rem 0;\n font-size: 17px !important;\n font-weight: 600;\n line-height: 1.45;\n color: #005F96 !important;\n}\n.kupo-faq-seo-item p {\n margin: 0;\n line-height: 1.6;\n color: #222222 !important;\n}\n\u003c\/style\u003e\n\u003csection class=\"kupo-faq-seo-block\" data-product-id=\"KHTN2351\" data-category=\"CEE Form (IEC 60309)\"\u003e\n \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n \u003cdiv class=\"kupo-faq-seo-item\"\u003e\n \u003ch3\u003eWhat is the KUPO KHTN2351 and what are its primary specifications?\u003c\/h3\u003e\n \u003cp\u003eThe KUPO KHTN2351 is a 63A CEE form connector (inline female) built to IEC (International Electrotechnical Commission) 60309-1 and 60309-2 standards for 380-415V three-phase power distribution. It features a 5-pole (3P+N+E) configuration that carries three live conductors, one neutral conductor, and one protective earth conductor for complete power distribution. The flame-retardant PA6 (Polyamide 6) Nylon housing with nickel-plated brass contacts accepts cables from 6-25 mmsq. The IP44-rated housing measures 175 mm overall with a body diameter of 105 mm.\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"kupo-faq-seo-item\"\u003e\n \u003ch3\u003eWhat built-in safety features does the KUPO KHTN2351 provide?\u003c\/h3\u003e\n \u003cp\u003eThe KHTN2351 connector (inline female), rated for 63A at 380-415V, includes integrated safety mechanisms to protect both the operator and connected equipment. The keyed earth contact at the 6h clock position physically prevents cross-mating with connectors from incompatible voltage systems. The protective earth on this 5-pole (3P+N+E) connector always engages first and releases last, ensuring the ground path is established before any of the 4 remaining contacts connect. The IP44 (Ingress Protection 44) splash-proof rating protects this inline connector against water splashes and solid objects larger than 1mm during portable field use.\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"kupo-faq-seo-item\"\u003e\n \u003ch3\u003eWhat determines the mating compatibility of the KHTN2351?\u003c\/h3\u003e\n \u003cp\u003eThe KUPO KHTN2351 is manufactured to IEC 60309-1 and IEC 60309-2 dimensional standards, ensuring full interoperability with CEE form connectors from all compliant manufacturers worldwide. To mate correctly, both connectors must share the same amperage rating (63A), voltage class (380-415V), pole configuration (5-pole (3P+N+E)), and earth contact clock position (6h). The clock position keying acts as a mechanical interlock: a 380-415V connector with a 6h earth position cannot physically engage with a connector keyed to a different clock position, preventing dangerous cross-connections between incompatible electrical systems.\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"kupo-faq-seo-item\"\u003e\n \u003ch3\u003eHow do you open and wire the KUPO KHTN2351 for cable assembly?\u003c\/h3\u003e\n \u003cp\u003eOpen the bayonet twist-lock housing, prepare the cable by stripping conductors to the specified length, and secure each conductor in its terminal. The contact tubes inside the connector receive the plug's pins during mating. Close the housing by pressing and rotating clockwise until the bayonet locks click into place. The KHTN2351 accepts cables from 6-25 mmsq through a 25 mm cable entry opening. The overall body length is 175 mm with a body diameter of 105 mm. The IP44 protection is maintained when the housing is properly closed and the cable gland is correctly tightened.\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"kupo-faq-seo-item\"\u003e\n \u003ch3\u003eWhat are the typical applications for the KHTN2351?\u003c\/h3\u003e\n \u003cp\u003eAs a heavy-duty three-phase connector, the KHTN2351 serves main power feeds, industrial switchgear inputs, large motor drives, heavy machinery connections, and large-scale temporary event power distribution. As an inline connector, it is used in cable assemblies, extension leads, and portable equipment connections for heavy machinery and motor drives, industrial HVAC (Heating, Ventilation, and Air Conditioning) systems, welding equipment, pump stations, and large-scale power distribution.\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"kupo-faq-seo-item\"\u003e\n \u003ch3\u003eWhy does the KHTN2351 use a 5-pole configuration instead of 4-pole?\u003c\/h3\u003e\n \u003cp\u003eThe KHTN2351 uses a 5-pole (3P+N+E) configuration that carries three live conductors, one neutral conductor, and one protective earth conductor for complete power distribution. The critical difference from 4-pole (3P+E) is the inclusion of a neutral conductor. A 4-pole connector carries three live phases plus earth, which is sufficient for balanced three-phase loads like motors and pumps. However, when the installation needs to supply both three-phase and single-phase loads from one connection, a neutral conductor is essential. The 5-pole KHTN2351 enables distribution boards and temporary power systems to derive single-phase circuits (line-to-neutral) alongside three-phase feeds, making it the standard choice for event power distribution and mixed-load industrial panels.\u003c\/p\u003e\n \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n \"@context\": \"https:\/\/schema.org\",\n \"@type\": \"FAQPage\",\n \"mainEntity\": [\n {\n \"@type\": \"Question\",\n \"name\": \"What is the KUPO KHTN2351 and what are its primary specifications?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"The KUPO KHTN2351 is a 63A CEE form connector (inline female) built to IEC (International Electrotechnical Commission) 60309-1 and 60309-2 standards for 380-415V three-phase power distribution. It features a 5-pole (3P+N+E) configuration that carries three live conductors, one neutral conductor, and one protective earth conductor for complete power distribution. The flame-retardant PA6 (Polyamide 6) Nylon housing with nickel-plated brass contacts accepts cables from 6-25 mmsq. The IP44-rated housing measures 175 mm overall with a body diameter of 105 mm.\"\n }\n },\n {\n \"@type\": \"Question\",\n \"name\": \"What built-in safety features does the KUPO KHTN2351 provide?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"The KHTN2351 connector (inline female), rated for 63A at 380-415V, includes integrated safety mechanisms to protect both the operator and connected equipment. The keyed earth contact at the 6h clock position physically prevents cross-mating with connectors from incompatible voltage systems. The protective earth on this 5-pole (3P+N+E) connector always engages first and releases last, ensuring the ground path is established before any of the 4 remaining contacts connect. The IP44 (Ingress Protection 44) splash-proof rating protects this inline connector against water splashes and solid objects larger than 1mm during portable field use.\"\n }\n },\n {\n \"@type\": \"Question\",\n \"name\": \"What determines the mating compatibility of the KHTN2351?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"The KUPO KHTN2351 is manufactured to IEC 60309-1 and IEC 60309-2 dimensional standards, ensuring full interoperability with CEE form connectors from all compliant manufacturers worldwide. To mate correctly, both connectors must share the same amperage rating (63A), voltage class (380-415V), pole configuration (5-pole (3P+N+E)), and earth contact clock position (6h). The clock position keying acts as a mechanical interlock: a 380-415V connector with a 6h earth position cannot physically engage with a connector keyed to a different clock position, preventing dangerous cross-connections between incompatible electrical systems.\"\n }\n },\n {\n \"@type\": \"Question\",\n \"name\": \"How do you open and wire the KUPO KHTN2351 for cable assembly?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"Open the bayonet twist-lock housing, prepare the cable by stripping conductors to the specified length, and secure each conductor in its terminal. The contact tubes inside the connector receive the plug's pins during mating. Close the housing by pressing and rotating clockwise until the bayonet locks click into place. The KHTN2351 accepts cables from 6-25 mmsq through a 25 mm cable entry opening. The overall body length is 175 mm with a body diameter of 105 mm. The IP44 protection is maintained when the housing is properly closed and the cable gland is correctly tightened.\"\n }\n },\n {\n \"@type\": \"Question\",\n \"name\": \"What are the typical applications for the KHTN2351?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"As a heavy-duty three-phase connector, the KHTN2351 serves main power feeds, industrial switchgear inputs, large motor drives, heavy machinery connections, and large-scale temporary event power distribution. As an inline connector, it is used in cable assemblies, extension leads, and portable equipment connections for heavy machinery and motor drives, industrial HVAC (Heating, Ventilation, and Air Conditioning) systems, welding equipment, pump stations, and large-scale power distribution.\"\n }\n },\n {\n \"@type\": \"Question\",\n \"name\": \"Why does the KHTN2351 use a 5-pole configuration instead of 4-pole?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"The KHTN2351 uses a 5-pole (3P+N+E) configuration that carries three live conductors, one neutral conductor, and one protective earth conductor for complete power distribution. The critical difference from 4-pole (3P+E) is the inclusion of a neutral conductor. A 4-pole connector carries three live phases plus earth, which is sufficient for balanced three-phase loads like motors and pumps. However, when the installation needs to supply both three-phase and single-phase loads from one connection, a neutral conductor is essential. The 5-pole KHTN2351 enables distribution boards and temporary power systems to derive single-phase circuits (line-to-neutral) alongside three-phase feeds, making it the standard choice for event power distribution and mixed-load industrial panels.\"\n }\n }\n ]\n}\n\u003c\/script\u003e\n\u003c!-- ==================== DOWNLOAD SECTION ==================== --\u003e\n\u003cstyle\u003e\n.kupo-download-section {\n margin: 2rem 0 0 0;\n padding: 0;\n border: 0;\n background: transparent;\n box-sizing: border-box;\n}\n.kupo-download-section h2 {\n margin: 0 0 1rem 0;\n font-size: 22px !important;\n font-weight: 700;\n line-height: 1.4;\n color: #005F96 !important;\n}\n.kupo-download-link {\n display: inline-flex;\n align-items: center;\n gap: 0.4rem;\n font-size: 16px !important;\n line-height: 1.5;\n color: #111111 !important;\n font-weight: 600;\n text-decoration: underline;\n}\n\u003c\/style\u003e\n\u003csection class=\"kupo-download-section\" data-product-id=\"KHTN2351\"\u003e\n \u003ch2\u003eDownload\u003c\/h2\u003e\n \u003ca class=\"kupo-download-link\" href=\"https:\/\/pub-87314d729f334121b80f91e16c4e7f60.r2.dev\/KHTN2351.pdf\" target=\"_blank\" rel=\"noopener\" download\u003e\n Download KHTN2351 Spec Sheet (PDF)\n \u003c\/a\u003e\n\u003c\/section\u003e","brand":"KUPO Power","offers":[{"title":"CEE Industrial (IEC 60309) \/ 63A \/ Inline Connector","offer_id":50208832389340,"sku":"KHTN2351","price":0.0,"currency_code":"TWD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/3491\/5548\/files\/KHTN2351.jpg?v=1777363477"},{"product_id":"khtn4331","title":"KHTN4331 - KUPO CEE Form 63A 3-Pole Industrial Receptacle, 230V, IP67","description":"\u003c!-- KUPO Shopify paste-ready combined HTML for KHTN4331 --\u003e\n\u003c!-- Includes product description, Product JSON-LD, FAQ, FAQ JSON-LD, and Download section. --\u003e\n\n\u003cstyle\u003e\n.kupo-section-title {\n margin: 1.25rem 0 1rem 0;\n font-size: 22px !important;\n font-weight: 700;\n line-height: 1.3;\n color: #005F96 !important;\n letter-spacing: 0;\n}\n.product-description h3 {\n color: #005F96 !important;\n font-size: 18px !important;\n font-weight: bold;\n margin-top: 1.5rem;\n margin-bottom: 0.75rem;\n line-height: 1.35;\n letter-spacing: 0;\n}\n.product-description,\n.product-description p,\n.product-description li {\n color: #222222 !important;\n}\n\u003c\/style\u003e\n\n\u003ch2 class=\"kupo-section-title\"\u003eProduct Description\u003c\/h2\u003e\n\u003cdiv class=\"product-description\" data-sku=\"KHTN4331\" data-voltage=\"220-250V\" data-amperage=\"63A\" data-poles=\"3\" data-ip=\"IP67\"\u003e\n\n\n \u003cdiv class=\"product-overview\"\u003e\n \u003cp\u003eBuilt to IEC (International Electrotechnical Commission) 60309-1 and 60309-2 standards, the KUPO KHTN4331 is a 63A CEE form receptacle (panel-mount female) rated for 220-250V operation with 3-pole (2P+E) configuration. The CE-marked design features a flame-retardant PA6 (Polyamide 6) Nylon housing, nickel-plated brass contacts, and IP67 (Ingress Protection 67) watertight protection. The keyed earth contact at the 6-hour clock position and earth-first\/earth-last engagement sequence ensure safe, foolproof connections across industrial, commercial, and entertainment applications.\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"product-features\"\u003e\n \u003ch3\u003eKey Features\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eProtective earth engages first and releases last, ensuring the ground path is established before live contacts connect\u003c\/li\u003e\n \u003cli\u003eKeyed earth contact at the 6-hour clock position prevents cross-mating with incompatible voltage systems\u003c\/li\u003e\n \u003cli\u003eIP67 watertight housing withstands temporary immersion up to 1 meter and complete dust ingress for harsh outdoor and wet environments\u003c\/li\u003e\n \u003cli\u003eRugged screw-type coupling maximizes mechanical strength and sealing integrity for stable performance in demanding conditions\u003c\/li\u003e\n \u003cli\u003eFlame-retardant PA6 (Polyamide 6) Nylon housing provides high impact resistance, electrical insulation, and self-extinguishing properties\u003c\/li\u003e\n \u003cli\u003eNickel-plated brass contacts deliver corrosion resistance and reliable low-resistance connections at sustained 63A loads\u003c\/li\u003e\n \u003cli\u003eAll terminal screws face the same direction for faster, more intuitive wiring\u003c\/li\u003e\n \u003cli\u003ePanel-mount design with standardized cutting hole dimensions for straightforward integration into enclosures, distribution boxes, and equipment panels\u003c\/li\u003e\n \u003cli\u003eBlue-coded housing identifies the 220-250V voltage class per international IEC 60309 color convention\u003c\/li\u003e\n \u003cli\u003eRated for operation from -25 to 40 degrees Celsius\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"product-certifications\"\u003e\n \u003ch3\u003eCertifications \u0026amp; Standards\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eCE Marked: Low Voltage Directive 2014\/35\/EU\u003c\/li\u003e\n \u003cli\u003eIEC\/EN 60309-1: 1999 +A1:2007 +A2:2012. General requirements for industrial plugs, socket-outlets and couplers\u003c\/li\u003e\n \u003cli\u003eIEC\/EN 60309-2: 1999 +A1:2007 +A2:2012. Dimensional compatibility requirements for pin and contact-tube accessories\u003c\/li\u003e\n \u003cli\u003eRoHS Compliant: Directive 2011\/65\/EU and (EU)2015\/863\u003c\/li\u003e\n \u003cli\u003eREACH Compliant: Regulation No 1907\/2006, Article 33(1) Obligation\u003c\/li\u003e\n \u003cli\u003eIP67 Watertight\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"product-applications\"\u003e\n \u003ch3\u003eApplications\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eTemporary and permanent power distribution on construction sites\u003c\/li\u003e\n \u003cli\u003eGeneral-purpose single-phase industrial and commercial power\u003c\/li\u003e\n \u003cli\u003eShore power for boats and marinas\u003c\/li\u003e\n \u003cli\u003eHeavy industrial main distribution feeds and generator connections\u003c\/li\u003e\n \u003cli\u003eSite main incomers and primary power infrastructure\u003c\/li\u003e\n \u003cli\u003eDistribution boards, switchgear assemblies, and equipment panel installations\u003c\/li\u003e\n \u003cli\u003eEntertainment and live event production\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"product-compatibility\"\u003e\n \u003ch3\u003eCompatibility\u003c\/h3\u003e\n \u003cp\u003eThe KUPO KHTN4331 is manufactured to IEC 60309-1 and IEC 60309-2 standards, ensuring dimensional compatibility with CEE form connectors from all compliant manufacturers. The 6-hour clock position earth contact permits mating only with connectors of the same 220-250V voltage class, preventing cross-connections between incompatible electrical systems.\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"product-color-conventions\"\u003e\n \u003ch3\u003eVoltage Color Convention\u003c\/h3\u003e\n \u003cimg src=\"\/\/cdn.cybassets.com\/s\/files\/35719\/ckeditor\/pictures\/content_c059c811-5695-42fa-93f2-603bc0fe8739.jpg\" alt=\"IEC 60309 CEE clock face position diagram showing voltage color coding and earth contact positions for 3-pole, 4-pole, and 5-pole configurations\" style=\"max-width: 100%; margin: 1rem 0;\"\u003e\n \u003cp\u003eCEE form connectors use internationally standardized housing colors to indicate voltage class: Yellow for 110-130V, Blue for 200-250V, Red for 380-480V, and Black for 500-690V. The keyed clock position of the earth contact prevents cross-mating between different voltage systems, ensuring only compatible connectors can be joined. Always verify voltage and frequency compatibility with local electrical supply before installation.\u003c\/p\u003e\n \u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003c!-- Product JSON-LD structured data --\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n \"@context\": \"https:\/\/schema.org\",\n \"@type\": \"Product\",\n \"name\": \"KHTN4331 | KUPO CEE Receptacle 63A 3P 220-250V 6h IP67\",\n \"description\": \"Built to IEC (International Electrotechnical Commission) 60309-1 and 60309-2 standards, the KUPO KHTN4331 is a 63A CEE form receptacle (panel-mount female) rated for 220-250V operation with 3-pole (2P+E) configuration. The CE-marked design features a flame-retardant PA6 (Polyamide 6) Nylon housing, nickel-plated brass contacts, and IP67 (Ingress Protection 67) watertight protection. The keyed earth contact at the 6-hour clock position and earth-first\/earth-last engagement sequence ensure safe, foolproof connections across industrial, commercial, and entertainment applications.\",\n \"brand\": {\n \"@type\": \"Brand\",\n \"name\": \"KUPO\"\n },\n \"manufacturer\": {\n \"@type\": \"Organization\",\n \"name\": \"KUPO CO. LTD\",\n \"url\": \"https:\/\/www.kupopower.com\"\n },\n \"category\": \"Electrical Connectors \u003e Industrial Plugs \u0026 Sockets \u003e CEE Form (IEC 60309)\",\n \"sku\": \"KHTN4331\",\n \"mpn\": \"KHTN4331\",\n \"color\": \"Blue \u0026 Gray\",\n \"material\": \"PA6 Nylon (Flame Retardant)\",\n \"additionalProperty\": [\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Amperage Rating\",\n \"value\": \"63A Maximum\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Voltage Rating\",\n \"value\": \"AC 220-250V Maximum\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Number of Poles\",\n \"value\": \"3 (2P+E)\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Earth Contact Position\",\n \"value\": \"6h\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Suitable Cable Size\",\n \"value\": \"6-25 mmsq\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Housing Material\",\n \"value\": \"Flame Retardant PA6 Nylon\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Housing Color\",\n \"value\": \"Blue \u0026 Gray\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Contact Material\",\n \"value\": \"Brass with Nickel Plating\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"IP Rating\",\n \"value\": \"IP67 Watertight\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Working Temperature Range\",\n \"value\": \"-25 to 40 degrees Celsius\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Flange Dimensions (A\/B)\",\n \"value\": \"100 mm\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Cutout Dimensions (C\/D)\",\n \"value\": \"80 mm\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Dimension E\",\n \"value\": \"39 mm\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Dimension F\",\n \"value\": \"94.5 mm\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Dimension G\",\n \"value\": \"114.5 mm\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Dimension H\",\n \"value\": \"73 mm\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Connector Type\",\n \"value\": \"CEE Form Receptacle (Panel-Mount Female)\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Connection Type\",\n \"value\": \"Screw-type coupling\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Standard\",\n \"value\": \"IEC\/EN 60309-1: 1999 +A1:2007 +A2:2012, IEC\/EN 60309-2: 1999 +A1:2007 +A2:2012\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Certifications\",\n \"value\": \"CE, RoHS, REACH\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Voltage Color Code\",\n \"value\": \"Blue = 220-250V\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"RoHS Compliant\",\n \"value\": \"Yes\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"REACH Compliant\",\n \"value\": \"Yes\"\n }\n ]\n}\n\u003c\/script\u003e\n\n\u003cstyle\u003e\n.kupo-faq-seo-block {\n margin: 3rem 0 0 0;\n padding: 0;\n border: 0;\n background: transparent;\n box-sizing: border-box;\n}\n.kupo-faq-seo-block h2 {\n margin: 0 0 1.6rem 0;\n font-size: 22px !important;\n font-weight: 700;\n line-height: 1.4;\n color: #005F96 !important;\n}\n.kupo-faq-seo-item {\n border-top: 1px solid #ececec;\n padding: 0.8rem 0;\n}\n.kupo-faq-seo-item:first-of-type {\n border-top: 0;\n padding-top: 0;\n}\n.kupo-faq-seo-item h3 {\n margin: 0 0 0.35rem 0;\n font-size: 17px !important;\n font-weight: 600;\n line-height: 1.45;\n color: #005F96 !important;\n}\n.kupo-faq-seo-item p {\n margin: 0;\n line-height: 1.6;\n color: #222222 !important;\n}\n\u003c\/style\u003e\n\u003csection class=\"kupo-faq-seo-block\" data-product-id=\"KHTN4331\" data-category=\"CEE Form (IEC 60309)\"\u003e\n \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n \u003cdiv class=\"kupo-faq-seo-item\"\u003e\n \u003ch3\u003eHow is the KUPO KHTN433 configured and what specifications does it offer?\u003c\/h3\u003e\n \u003cp\u003eThe KUPO KHTN433 is a 63A CEE form receptacle (panel-mount female) built to IEC (International Electrotechnical Commission) 60309-1 and 60309-2 standards for 220-250V single-phase power distribution. It features a 3-pole (2P+E) configuration that carries one live conductor, one neutral conductor, and one protective earth conductor. The flame-retardant PA6 (Polyamide 6) Nylon housing with nickel-plated brass contacts accepts cables from 10-35 mmsq. The IP44-rated housing has a flange dimension of 100 mm and requires a panel cutout of 85 mm.\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"kupo-faq-seo-item\"\u003e\n \u003ch3\u003eWhat safety mechanisms does the KHTN433 include to prevent incorrect connections?\u003c\/h3\u003e\n \u003cp\u003ePermanently mounted in panels and enclosures, the KHTN433 63A 220-250V receptacle provides continuous protection for the distribution system it serves. The keyed earth contact at the 6h clock position physically prevents cross-mating with connectors from incompatible voltage systems. The protective earth on this 3-pole (2P+E) connector always engages first and releases last, ensuring the ground path is established before any of the 2 remaining contacts connect. The IP44 (Ingress Protection 44) rating protects the panel-mounted connection against splashing water from all directions and solid objects larger than 1mm, maintaining protection integrity within the enclosure.\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"kupo-faq-seo-item\"\u003e\n \u003ch3\u003eIs the KHTN433 compatible with CEE form connectors from other manufacturers?\u003c\/h3\u003e\n \u003cp\u003eThe KUPO KHTN433 is manufactured to IEC 60309-1 and IEC 60309-2 dimensional standards, ensuring full interoperability with CEE form connectors from all compliant manufacturers worldwide. To mate correctly, both connectors must share the same amperage rating (63A), voltage class (220-250V), pole configuration (3-pole (2P+E)), and earth contact clock position (6h). The clock position keying acts as a mechanical interlock: a 220-250V connector with a 6h earth position cannot physically engage with a connector keyed to a different clock position, preventing dangerous cross-connections between incompatible electrical systems.\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"kupo-faq-seo-item\"\u003e\n \u003ch3\u003eWhat installation steps are required to fit the KHTN433 into a panel enclosure?\u003c\/h3\u003e\n \u003cp\u003eMark and cut the panel opening to the specified cutout dimensions. Insert the receptacle from the front of the panel, align the flange with the mounting surface, and secure using the provided mounting hardware. Wire the terminals from behind the panel, connecting each conductor to its designated terminal. The KHTN433 has a flange dimension of 100 mm and requires a panel cutout of 85 mm. The cable size range for this unit is 10-35 mmsq. All terminal screws face the same direction for faster wiring. The IP44 protection is maintained when the housing is properly closed and the cable gland is correctly tightened.\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"kupo-faq-seo-item\"\u003e\n \u003ch3\u003eWhat types of installations benefit most from the KHTN433?\u003c\/h3\u003e\n \u003cp\u003eAs a heavy-duty single-phase receptacle, the KHTN433 serves main power feeds, industrial switchgear inputs, large motor drives, heavy machinery connections, and large-scale temporary event power distribution. Panel-mounted in distribution boxes, switchgear assemblies, and equipment enclosures, it provides a permanent 220-250V connection point for Single-phase loads including lighting, portable tools, general power outlets, workstation feeds, and individual equipment connections.\u003c\/p\u003e\n \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n \"@context\": \"https:\/\/schema.org\",\n \"@type\": \"FAQPage\",\n \"mainEntity\": [\n {\n \"@type\": \"Question\",\n \"name\": \"How is the KUPO KHTN433 configured and what specifications does it offer?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"The KUPO KHTN433 is a 63A CEE form receptacle (panel-mount female) built to IEC (International Electrotechnical Commission) 60309-1 and 60309-2 standards for 220-250V single-phase power distribution. It features a 3-pole (2P+E) configuration that carries one live conductor, one neutral conductor, and one protective earth conductor. The flame-retardant PA6 (Polyamide 6) Nylon housing with nickel-plated brass contacts accepts cables from 10-35 mmsq. The IP44-rated housing has a flange dimension of 100 mm and requires a panel cutout of 85 mm.\"\n }\n },\n {\n \"@type\": \"Question\",\n \"name\": \"What safety mechanisms does the KHTN433 include to prevent incorrect connections?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"Permanently mounted in panels and enclosures, the KHTN433 63A 220-250V receptacle provides continuous protection for the distribution system it serves. The keyed earth contact at the 6h clock position physically prevents cross-mating with connectors from incompatible voltage systems. The protective earth on this 3-pole (2P+E) connector always engages first and releases last, ensuring the ground path is established before any of the 2 remaining contacts connect. The IP44 (Ingress Protection 44) rating protects the panel-mounted connection against splashing water from all directions and solid objects larger than 1mm, maintaining protection integrity within the enclosure.\"\n }\n },\n {\n \"@type\": \"Question\",\n \"name\": \"Is the KHTN433 compatible with CEE form connectors from other manufacturers?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"The KUPO KHTN433 is manufactured to IEC 60309-1 and IEC 60309-2 dimensional standards, ensuring full interoperability with CEE form connectors from all compliant manufacturers worldwide. To mate correctly, both connectors must share the same amperage rating (63A), voltage class (220-250V), pole configuration (3-pole (2P+E)), and earth contact clock position (6h). The clock position keying acts as a mechanical interlock: a 220-250V connector with a 6h earth position cannot physically engage with a connector keyed to a different clock position, preventing dangerous cross-connections between incompatible electrical systems.\"\n }\n },\n {\n \"@type\": \"Question\",\n \"name\": \"What installation steps are required to fit the KHTN433 into a panel enclosure?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"Mark and cut the panel opening to the specified cutout dimensions. Insert the receptacle from the front of the panel, align the flange with the mounting surface, and secure using the provided mounting hardware. Wire the terminals from behind the panel, connecting each conductor to its designated terminal. The KHTN433 has a flange dimension of 100 mm and requires a panel cutout of 85 mm. The cable size range for this unit is 10-35 mmsq. All terminal screws face the same direction for faster wiring. The IP44 protection is maintained when the housing is properly closed and the cable gland is correctly tightened.\"\n }\n },\n {\n \"@type\": \"Question\",\n \"name\": \"What types of installations benefit most from the KHTN433?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"As a heavy-duty single-phase receptacle, the KHTN433 serves main power feeds, industrial switchgear inputs, large motor drives, heavy machinery connections, and large-scale temporary event power distribution. Panel-mounted in distribution boxes, switchgear assemblies, and equipment enclosures, it provides a permanent 220-250V connection point for Single-phase loads including lighting, portable tools, general power outlets, workstation feeds, and individual equipment connections.\"\n }\n }\n ]\n}\n\u003c\/script\u003e\n\u003c!-- ==================== DOWNLOAD SECTION ==================== --\u003e\n\u003cstyle\u003e\n.kupo-download-section {\n margin: 2rem 0 0 0;\n padding: 0;\n border: 0;\n background: transparent;\n box-sizing: border-box;\n}\n.kupo-download-section h2 {\n margin: 0 0 1rem 0;\n font-size: 22px !important;\n font-weight: 700;\n line-height: 1.4;\n color: #005F96 !important;\n}\n.kupo-download-link {\n display: inline-flex;\n align-items: center;\n gap: 0.4rem;\n font-size: 16px !important;\n line-height: 1.5;\n color: #111111 !important;\n font-weight: 600;\n text-decoration: underline;\n}\n\u003c\/style\u003e\n\u003csection class=\"kupo-download-section\" data-product-id=\"KHTN4331\"\u003e\n \u003ch2\u003eDownload\u003c\/h2\u003e\n \u003ca class=\"kupo-download-link\" href=\"https:\/\/pub-87314d729f334121b80f91e16c4e7f60.r2.dev\/KHTN4331.pdf\" target=\"_blank\" rel=\"noopener\" download\u003e\n Download KHTN4331 Spec Sheet (PDF)\n \u003c\/a\u003e\n\u003c\/section\u003e","brand":"KUPO Power","offers":[{"title":"CEE Industrial (IEC 60309) \/ 63A \/ Panel Mount Receptacle","offer_id":50208832454876,"sku":"KHTN4331","price":0.0,"currency_code":"TWD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/3491\/5548\/files\/KHTN4331.jpg?v=1777363479"},{"product_id":"khtn4351","title":"KHTN4351 - KUPO CEE Form 63A 5-Pole Industrial Receptacle, 400V, IP67","description":"\u003c!-- KUPO Shopify paste-ready combined HTML for KHTN4351 --\u003e\n\u003c!-- Includes product description, Product JSON-LD, FAQ, FAQ JSON-LD, and Download section. --\u003e\n\n\u003cstyle\u003e\n.kupo-section-title {\n margin: 1.25rem 0 1rem 0;\n font-size: 22px !important;\n font-weight: 700;\n line-height: 1.3;\n color: #005F96 !important;\n letter-spacing: 0;\n}\n.product-description h3 {\n color: #005F96 !important;\n font-size: 18px !important;\n font-weight: bold;\n margin-top: 1.5rem;\n margin-bottom: 0.75rem;\n line-height: 1.35;\n letter-spacing: 0;\n}\n.product-description,\n.product-description p,\n.product-description li {\n color: #222222 !important;\n}\n\u003c\/style\u003e\n\n\u003ch2 class=\"kupo-section-title\"\u003eProduct Description\u003c\/h2\u003e\n\u003cdiv class=\"product-description\" data-sku=\"KHTN4351\" data-voltage=\"380-415V\" data-amperage=\"63A\" data-poles=\"5\" data-ip=\"IP67\"\u003e\n\n\n \u003cdiv class=\"product-overview\"\u003e\n \u003cp\u003eWith earth-first contact engagement, IP67 (Ingress Protection 67) watertight protection, and screw-type coupling housing, the KUPO KHTN4351 is a 63A CEE form receptacle (panel-mount female) engineered for 380-415V power distribution. The flame-retardant PA6 (Polyamide 6) Nylon housing and nickel-plated brass contacts deliver high impact resistance, corrosion protection, and low-resistance electrical paths under sustained 63A loads. The keyed earth contact at the 6-hour clock position prevents cross-mating with incompatible voltage systems, meeting IEC (International Electrotechnical Commission) 60309-1 and 60309-2 standards.\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"product-features\"\u003e\n \u003ch3\u003eKey Features\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eProtective earth engages first and releases last, ensuring the ground path is established before live contacts connect\u003c\/li\u003e\n \u003cli\u003eKeyed earth contact at the 6-hour clock position prevents cross-mating with incompatible voltage systems\u003c\/li\u003e\n \u003cli\u003eIP67 watertight housing withstands temporary immersion up to 1 meter and complete dust ingress for harsh outdoor and wet environments\u003c\/li\u003e\n \u003cli\u003eRugged screw-type coupling maximizes mechanical strength and sealing integrity for stable performance in demanding conditions\u003c\/li\u003e\n \u003cli\u003eFlame-retardant PA6 (Polyamide 6) Nylon housing provides high impact resistance, electrical insulation, and self-extinguishing properties\u003c\/li\u003e\n \u003cli\u003eNickel-plated brass contacts deliver corrosion resistance and reliable low-resistance connections at sustained 63A loads\u003c\/li\u003e\n \u003cli\u003eAll terminal screws face the same direction for faster, more intuitive wiring\u003c\/li\u003e\n \u003cli\u003ePanel-mount design with standardized cutting hole dimensions for straightforward integration into enclosures, distribution boxes, and equipment panels\u003c\/li\u003e\n \u003cli\u003eRed-coded housing identifies the 380-415V voltage class per international IEC 60309 color convention\u003c\/li\u003e\n \u003cli\u003eRated for operation from -25 to 40 degrees Celsius\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"product-certifications\"\u003e\n \u003ch3\u003eCertifications \u0026amp; Standards\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eCE Marked: Low Voltage Directive 2014\/35\/EU\u003c\/li\u003e\n \u003cli\u003eIEC\/EN 60309-1: 1999 +A1:2007 +A2:2012. General requirements for industrial plugs, socket-outlets and couplers\u003c\/li\u003e\n \u003cli\u003eIEC\/EN 60309-2: 1999 +A1:2007 +A2:2012. Dimensional compatibility requirements for pin and contact-tube accessories\u003c\/li\u003e\n \u003cli\u003eRoHS Compliant: Directive 2011\/65\/EU and (EU)2015\/863\u003c\/li\u003e\n \u003cli\u003eREACH Compliant: Regulation No 1907\/2006, Article 33(1) Obligation\u003c\/li\u003e\n \u003cli\u003eIP67 Watertight\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"product-applications\"\u003e\n \u003ch3\u003eApplications\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eTemporary and permanent power distribution on construction sites\u003c\/li\u003e\n \u003cli\u003eThree-phase heavy machinery, motor drives, and HVAC (Heating, Ventilation, and Air Conditioning) systems\u003c\/li\u003e\n \u003cli\u003eWelding equipment and pump station power supply\u003c\/li\u003e\n \u003cli\u003eHeavy industrial main distribution feeds and generator connections\u003c\/li\u003e\n \u003cli\u003eSite main incomers and primary power infrastructure\u003c\/li\u003e\n \u003cli\u003eDistribution boards, switchgear assemblies, and equipment panel installations\u003c\/li\u003e\n \u003cli\u003eEntertainment and live event production\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"product-compatibility\"\u003e\n \u003ch3\u003eCompatibility\u003c\/h3\u003e\n \u003cp\u003eThe KUPO KHTN4351 is manufactured to IEC 60309-1 and IEC 60309-2 standards, ensuring dimensional compatibility with CEE form connectors from all compliant manufacturers. The 6-hour clock position earth contact permits mating only with connectors of the same 380-415V voltage class, preventing cross-connections between incompatible electrical systems.\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"product-color-conventions\"\u003e\n \u003ch3\u003eVoltage Color Convention\u003c\/h3\u003e\n \u003cimg src=\"\/\/cdn.cybassets.com\/s\/files\/35719\/ckeditor\/pictures\/content_c059c811-5695-42fa-93f2-603bc0fe8739.jpg\" alt=\"IEC 60309 CEE clock face position diagram showing voltage color coding and earth contact positions for 3-pole, 4-pole, and 5-pole configurations\" style=\"max-width: 100%; margin: 1rem 0;\"\u003e\n \u003cp\u003eCEE form connectors use internationally standardized housing colors to indicate voltage class: Yellow for 110-130V, Blue for 200-250V, Red for 380-480V, and Black for 500-690V. The keyed clock position of the earth contact prevents cross-mating between different voltage systems, ensuring only compatible connectors can be joined. Always verify voltage and frequency compatibility with local electrical supply before installation.\u003c\/p\u003e\n \u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003c!-- Product JSON-LD structured data --\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n \"@context\": \"https:\/\/schema.org\",\n \"@type\": \"Product\",\n \"name\": \"KHTN4351 | KUPO CEE Receptacle 63A 5P 380-415V 6h IP67\",\n \"description\": \"With earth-first contact engagement, IP67 (Ingress Protection 67) watertight protection, and screw-type coupling housing, the KUPO KHTN4351 is a 63A CEE form receptacle (panel-mount female) engineered for 380-415V power distribution. The flame-retardant PA6 (Polyamide 6) Nylon housing and nickel-plated brass contacts deliver high impact resistance, corrosion protection, and low-resistance electrical paths under sustained 63A loads. The keyed earth contact at the 6-hour clock position prevents cross-mating with incompatible voltage systems, meeting IEC (International Electrotechnical Commission) 60309-1 and 60309-2 standards.\",\n \"brand\": {\n \"@type\": \"Brand\",\n \"name\": \"KUPO\"\n },\n \"manufacturer\": {\n \"@type\": \"Organization\",\n \"name\": \"KUPO CO. LTD\",\n \"url\": \"https:\/\/www.kupopower.com\"\n },\n \"category\": \"Electrical Connectors \u003e Industrial Plugs \u0026 Sockets \u003e CEE Form (IEC 60309)\",\n \"sku\": \"KHTN4351\",\n \"mpn\": \"KHTN4351\",\n \"color\": \"Red \u0026 Gray\",\n \"material\": \"PA6 Nylon (Flame Retardant)\",\n \"additionalProperty\": [\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Amperage Rating\",\n \"value\": \"63A Maximum\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Voltage Rating\",\n \"value\": \"AC 380-415V Maximum\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Number of Poles\",\n \"value\": \"5 (3P+N+E)\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Earth Contact Position\",\n \"value\": \"6h\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Suitable Cable Size\",\n \"value\": \"6-25 mmsq\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Housing Material\",\n \"value\": \"Flame Retardant PA6 Nylon\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Housing Color\",\n \"value\": \"Red \u0026 Gray\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Contact Material\",\n \"value\": \"Brass with Nickel Plating\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"IP Rating\",\n \"value\": \"IP67 Watertight\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Working Temperature Range\",\n \"value\": \"-25 to 40 degrees Celsius\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Flange Dimensions (A\/B)\",\n \"value\": \"100 mm\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Cutout Dimensions (C\/D)\",\n \"value\": \"80 mm\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Dimension E\",\n \"value\": \"39 mm\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Dimension F\",\n \"value\": \"94.5 mm\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Dimension G\",\n \"value\": \"114.5 mm\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Dimension H\",\n \"value\": \"73 mm\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Connector Type\",\n \"value\": \"CEE Form Receptacle (Panel-Mount Female)\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Connection Type\",\n \"value\": \"Screw-type coupling\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Standard\",\n \"value\": \"IEC\/EN 60309-1: 1999 +A1:2007 +A2:2012, IEC\/EN 60309-2: 1999 +A1:2007 +A2:2012\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Certifications\",\n \"value\": \"CE, RoHS, REACH\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Voltage Color Code\",\n \"value\": \"Red = 380-415V\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"RoHS Compliant\",\n \"value\": \"Yes\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"REACH Compliant\",\n \"value\": \"Yes\"\n }\n ]\n}\n\u003c\/script\u003e\n\n\u003cstyle\u003e\n.kupo-faq-seo-block {\n margin: 3rem 0 0 0;\n padding: 0;\n border: 0;\n background: transparent;\n box-sizing: border-box;\n}\n.kupo-faq-seo-block h2 {\n margin: 0 0 1.6rem 0;\n font-size: 22px !important;\n font-weight: 700;\n line-height: 1.4;\n color: #005F96 !important;\n}\n.kupo-faq-seo-item {\n border-top: 1px solid #ececec;\n padding: 0.8rem 0;\n}\n.kupo-faq-seo-item:first-of-type {\n border-top: 0;\n padding-top: 0;\n}\n.kupo-faq-seo-item h3 {\n margin: 0 0 0.35rem 0;\n font-size: 17px !important;\n font-weight: 600;\n line-height: 1.45;\n color: #005F96 !important;\n}\n.kupo-faq-seo-item p {\n margin: 0;\n line-height: 1.6;\n color: #222222 !important;\n}\n\u003c\/style\u003e\n\u003csection class=\"kupo-faq-seo-block\" data-product-id=\"KHTN4351\" data-category=\"CEE Form (IEC 60309)\"\u003e\n \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n \u003cdiv class=\"kupo-faq-seo-item\"\u003e\n \u003ch3\u003eWhat does the KUPO KHTN435 provide in terms of electrical ratings and design?\u003c\/h3\u003e\n \u003cp\u003eThe KUPO KHTN435 is a 63A CEE form receptacle (panel-mount female) built to IEC (International Electrotechnical Commission) 60309-1 and 60309-2 standards for 380-415V three-phase power distribution. It features a 5-pole (3P+N+E) configuration that carries three live conductors, one neutral conductor, and one protective earth conductor for complete power distribution. The flame-retardant PA6 (Polyamide 6) Nylon housing with nickel-plated brass contacts accepts cables from 10-35 mmsq. The IP44-rated housing has a flange dimension of 120 mm and requires a panel cutout of 100 mm.\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"kupo-faq-seo-item\"\u003e\n \u003ch3\u003eHow does the KHTN435 protect against cross-mating with incompatible voltage systems?\u003c\/h3\u003e\n \u003cp\u003ePermanently mounted in panels and enclosures, the KHTN435 63A 380-415V receptacle provides continuous protection for the distribution system it serves. The keyed earth contact at the 6h clock position physically prevents cross-mating with connectors from incompatible voltage systems. The protective earth on this 5-pole (3P+N+E) connector always engages first and releases last, ensuring the ground path is established before any of the 4 remaining contacts connect. The IP44 (Ingress Protection 44) rating protects the panel-mounted connection against splashing water from all directions and solid objects larger than 1mm, maintaining protection integrity within the enclosure.\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"kupo-faq-seo-item\"\u003e\n \u003ch3\u003eCan the KUPO KHTN435 be used with non-KUPO IEC 60309 connectors?\u003c\/h3\u003e\n \u003cp\u003eThe KUPO KHTN435 is manufactured to IEC 60309-1 and IEC 60309-2 dimensional standards, ensuring full interoperability with CEE form connectors from all compliant manufacturers worldwide. To mate correctly, both connectors must share the same amperage rating (63A), voltage class (380-415V), pole configuration (5-pole (3P+N+E)), and earth contact clock position (6h). The clock position keying acts as a mechanical interlock: a 380-415V connector with a 6h earth position cannot physically engage with a connector keyed to a different clock position, preventing dangerous cross-connections between incompatible electrical systems.\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"kupo-faq-seo-item\"\u003e\n \u003ch3\u003eWhat are the panel cutout requirements for installing the KHTN435?\u003c\/h3\u003e\n \u003cp\u003eMark and cut the panel opening to the specified cutout dimensions. Insert the receptacle from the front of the panel, align the flange with the mounting surface, and secure using the provided mounting hardware. Wire the terminals from behind the panel, connecting each conductor to its designated terminal. The KHTN435 has a flange dimension of 120 mm and requires a panel cutout of 100 mm. The cable size range for this unit is 10-35 mmsq. All terminal screws face the same direction for faster wiring. The IP44 protection is maintained when the housing is properly closed and the cable gland is correctly tightened.\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"kupo-faq-seo-item\"\u003e\n \u003ch3\u003eWhere is the KHTN435 most commonly deployed?\u003c\/h3\u003e\n \u003cp\u003eAs a heavy-duty three-phase receptacle, the KHTN435 serves main power feeds, industrial switchgear inputs, large motor drives, heavy machinery connections, and large-scale temporary event power distribution. Panel-mounted in distribution boxes, switchgear assemblies, and equipment enclosures, it provides a permanent 380-415V connection point for Full three-phase distribution with the ability to supply both three-phase and single-phase loads from one connection. Essential for distribution boards, mixed-load panels, and temporary event power systems.\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"kupo-faq-seo-item\"\u003e\n \u003ch3\u003eWhy does the KHTN435 use a 5-pole configuration instead of 4-pole?\u003c\/h3\u003e\n \u003cp\u003eThe KHTN435 uses a 5-pole (3P+N+E) configuration that carries three live conductors, one neutral conductor, and one protective earth conductor for complete power distribution. The critical difference from 4-pole (3P+E) is the inclusion of a neutral conductor. A 4-pole connector carries three live phases plus earth, which is sufficient for balanced three-phase loads like motors and pumps. However, when the installation needs to supply both three-phase and single-phase loads from one connection, a neutral conductor is essential. The 5-pole KHTN435 enables distribution boards and temporary power systems to derive single-phase circuits (line-to-neutral) alongside three-phase feeds, making it the standard choice for event power distribution and mixed-load industrial panels.\u003c\/p\u003e\n \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n \"@context\": \"https:\/\/schema.org\",\n \"@type\": \"FAQPage\",\n \"mainEntity\": [\n {\n \"@type\": \"Question\",\n \"name\": \"What does the KUPO KHTN435 provide in terms of electrical ratings and design?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"The KUPO KHTN435 is a 63A CEE form receptacle (panel-mount female) built to IEC (International Electrotechnical Commission) 60309-1 and 60309-2 standards for 380-415V three-phase power distribution. It features a 5-pole (3P+N+E) configuration that carries three live conductors, one neutral conductor, and one protective earth conductor for complete power distribution. The flame-retardant PA6 (Polyamide 6) Nylon housing with nickel-plated brass contacts accepts cables from 10-35 mmsq. The IP44-rated housing has a flange dimension of 120 mm and requires a panel cutout of 100 mm.\"\n }\n },\n {\n \"@type\": \"Question\",\n \"name\": \"How does the KHTN435 protect against cross-mating with incompatible voltage systems?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"Permanently mounted in panels and enclosures, the KHTN435 63A 380-415V receptacle provides continuous protection for the distribution system it serves. The keyed earth contact at the 6h clock position physically prevents cross-mating with connectors from incompatible voltage systems. The protective earth on this 5-pole (3P+N+E) connector always engages first and releases last, ensuring the ground path is established before any of the 4 remaining contacts connect. The IP44 (Ingress Protection 44) rating protects the panel-mounted connection against splashing water from all directions and solid objects larger than 1mm, maintaining protection integrity within the enclosure.\"\n }\n },\n {\n \"@type\": \"Question\",\n \"name\": \"Can the KUPO KHTN435 be used with non-KUPO IEC 60309 connectors?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"The KUPO KHTN435 is manufactured to IEC 60309-1 and IEC 60309-2 dimensional standards, ensuring full interoperability with CEE form connectors from all compliant manufacturers worldwide. To mate correctly, both connectors must share the same amperage rating (63A), voltage class (380-415V), pole configuration (5-pole (3P+N+E)), and earth contact clock position (6h). The clock position keying acts as a mechanical interlock: a 380-415V connector with a 6h earth position cannot physically engage with a connector keyed to a different clock position, preventing dangerous cross-connections between incompatible electrical systems.\"\n }\n },\n {\n \"@type\": \"Question\",\n \"name\": \"What are the panel cutout requirements for installing the KHTN435?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"Mark and cut the panel opening to the specified cutout dimensions. Insert the receptacle from the front of the panel, align the flange with the mounting surface, and secure using the provided mounting hardware. Wire the terminals from behind the panel, connecting each conductor to its designated terminal. The KHTN435 has a flange dimension of 120 mm and requires a panel cutout of 100 mm. The cable size range for this unit is 10-35 mmsq. All terminal screws face the same direction for faster wiring. The IP44 protection is maintained when the housing is properly closed and the cable gland is correctly tightened.\"\n }\n },\n {\n \"@type\": \"Question\",\n \"name\": \"Where is the KHTN435 most commonly deployed?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"As a heavy-duty three-phase receptacle, the KHTN435 serves main power feeds, industrial switchgear inputs, large motor drives, heavy machinery connections, and large-scale temporary event power distribution. Panel-mounted in distribution boxes, switchgear assemblies, and equipment enclosures, it provides a permanent 380-415V connection point for Full three-phase distribution with the ability to supply both three-phase and single-phase loads from one connection. Essential for distribution boards, mixed-load panels, and temporary event power systems.\"\n }\n },\n {\n \"@type\": \"Question\",\n \"name\": \"Why does the KHTN435 use a 5-pole configuration instead of 4-pole?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"The KHTN435 uses a 5-pole (3P+N+E) configuration that carries three live conductors, one neutral conductor, and one protective earth conductor for complete power distribution. The critical difference from 4-pole (3P+E) is the inclusion of a neutral conductor. A 4-pole connector carries three live phases plus earth, which is sufficient for balanced three-phase loads like motors and pumps. However, when the installation needs to supply both three-phase and single-phase loads from one connection, a neutral conductor is essential. The 5-pole KHTN435 enables distribution boards and temporary power systems to derive single-phase circuits (line-to-neutral) alongside three-phase feeds, making it the standard choice for event power distribution and mixed-load industrial panels.\"\n }\n }\n ]\n}\n\u003c\/script\u003e\n\u003c!-- ==================== DOWNLOAD SECTION ==================== --\u003e\n\u003cstyle\u003e\n.kupo-download-section {\n margin: 2rem 0 0 0;\n padding: 0;\n border: 0;\n background: transparent;\n box-sizing: border-box;\n}\n.kupo-download-section h2 {\n margin: 0 0 1rem 0;\n font-size: 22px !important;\n font-weight: 700;\n line-height: 1.4;\n color: #005F96 !important;\n}\n.kupo-download-link {\n display: inline-flex;\n align-items: center;\n gap: 0.4rem;\n font-size: 16px !important;\n line-height: 1.5;\n color: #111111 !important;\n font-weight: 600;\n text-decoration: underline;\n}\n\u003c\/style\u003e\n\u003csection class=\"kupo-download-section\" data-product-id=\"KHTN4351\"\u003e\n \u003ch2\u003eDownload\u003c\/h2\u003e\n \u003ca class=\"kupo-download-link\" href=\"https:\/\/pub-87314d729f334121b80f91e16c4e7f60.r2.dev\/KHTN4351.pdf\" target=\"_blank\" rel=\"noopener\" download\u003e\n Download KHTN4351 Spec Sheet (PDF)\n \u003c\/a\u003e\n\u003c\/section\u003e","brand":"KUPO Power","offers":[{"title":"CEE Industrial (IEC 60309) \/ 63A \/ Panel Mount Receptacle","offer_id":50208832487644,"sku":"KHTN4351","price":0.0,"currency_code":"TWD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/3491\/5548\/files\/KHTN4351.jpg?v=1777363480"},{"product_id":"khtn6331","title":"KHTN6331 - KUPO CEE Form 63A 3-Pole Industrial Inlet, 230V, IP67","description":"\u003c!-- KUPO Shopify paste-ready combined HTML for KHTN6331 --\u003e\n\u003c!-- Includes product description, Product JSON-LD, FAQ, FAQ JSON-LD, and Download section. --\u003e\n\n\u003cstyle\u003e\n.kupo-section-title {\n margin: 1.25rem 0 1rem 0;\n font-size: 22px !important;\n font-weight: 700;\n line-height: 1.3;\n color: #005F96 !important;\n letter-spacing: 0;\n}\n.product-description h3 {\n color: #005F96 !important;\n font-size: 18px !important;\n font-weight: bold;\n margin-top: 1.5rem;\n margin-bottom: 0.75rem;\n line-height: 1.35;\n letter-spacing: 0;\n}\n.product-description,\n.product-description p,\n.product-description li {\n color: #222222 !important;\n}\n\u003c\/style\u003e\n\n\u003ch2 class=\"kupo-section-title\"\u003eProduct Description\u003c\/h2\u003e\n\u003cdiv class=\"product-description\" data-sku=\"KHTN6331\" data-voltage=\"220-250V\" data-amperage=\"63A\" data-poles=\"3\" data-ip=\"IP67\"\u003e\n\n\n \u003cdiv class=\"product-overview\"\u003e\n \u003cp\u003ePart of KUPO's complete CEE form connector range spanning 16A to 125A and 110V to 400V, the KHTN6331 is a 63A inlet (panel-mount male) designed for 220-250V 3-pole (2P+E) circuits. Like every connector in the range, it features a flame-retardant PA6 (Polyamide 6) Nylon housing, nickel-plated brass contacts, and IP67 (Ingress Protection 67) watertight protection. The keyed earth contact at the 6-hour clock position and earth-first\/earth-last engagement sequence comply with IEC (International Electrotechnical Commission) 60309-1 and 60309-2 standards, ensuring safe interoperability with any compliant CEE connector.\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"product-features\"\u003e\n \u003ch3\u003eKey Features\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eProtective earth engages first and releases last, ensuring the ground path is established before live contacts connect\u003c\/li\u003e\n \u003cli\u003eKeyed earth contact at the 6-hour clock position prevents cross-mating with incompatible voltage systems\u003c\/li\u003e\n \u003cli\u003eIP67 watertight housing withstands temporary immersion up to 1 meter and complete dust ingress for harsh outdoor and wet environments\u003c\/li\u003e\n \u003cli\u003eRugged screw-type coupling maximizes mechanical strength and sealing integrity for stable performance in demanding conditions\u003c\/li\u003e\n \u003cli\u003eFlame-retardant PA6 (Polyamide 6) Nylon housing provides high impact resistance, electrical insulation, and self-extinguishing properties\u003c\/li\u003e\n \u003cli\u003eNickel-plated brass contacts deliver corrosion resistance and reliable low-resistance connections at sustained 63A loads\u003c\/li\u003e\n \u003cli\u003eAll terminal screws face the same direction for faster, more intuitive wiring\u003c\/li\u003e\n \u003cli\u003ePanel-mount design with standardized cutting hole dimensions for straightforward integration into enclosures, distribution boxes, and equipment panels\u003c\/li\u003e\n \u003cli\u003eBlue-coded housing identifies the 220-250V voltage class per international IEC 60309 color convention\u003c\/li\u003e\n \u003cli\u003eRated for operation from -25 to 40 degrees Celsius\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"product-certifications\"\u003e\n \u003ch3\u003eCertifications \u0026amp; Standards\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eCE Marked: Low Voltage Directive 2014\/35\/EU\u003c\/li\u003e\n \u003cli\u003eIEC\/EN 60309-1: 1999 +A1:2007 +A2:2012. General requirements for industrial plugs, socket-outlets and couplers\u003c\/li\u003e\n \u003cli\u003eIEC\/EN 60309-2: 1999 +A1:2007 +A2:2012. Dimensional compatibility requirements for pin and contact-tube accessories\u003c\/li\u003e\n \u003cli\u003eRoHS Compliant: Directive 2011\/65\/EU and (EU)2015\/863\u003c\/li\u003e\n \u003cli\u003eREACH Compliant: Regulation No 1907\/2006, Article 33(1) Obligation\u003c\/li\u003e\n \u003cli\u003eIP67 Watertight\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"product-applications\"\u003e\n \u003ch3\u003eApplications\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eTemporary and permanent power distribution on construction sites\u003c\/li\u003e\n \u003cli\u003eGeneral-purpose single-phase industrial and commercial power\u003c\/li\u003e\n \u003cli\u003eShore power for boats and marinas\u003c\/li\u003e\n \u003cli\u003eHeavy industrial main distribution feeds and generator connections\u003c\/li\u003e\n \u003cli\u003eSite main incomers and primary power infrastructure\u003c\/li\u003e\n \u003cli\u003eDistribution boards, switchgear assemblies, and equipment panel installations\u003c\/li\u003e\n \u003cli\u003eEntertainment and live event production\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"product-compatibility\"\u003e\n \u003ch3\u003eCompatibility\u003c\/h3\u003e\n \u003cp\u003eThe KUPO KHTN6331 is manufactured to IEC 60309-1 and IEC 60309-2 standards, ensuring dimensional compatibility with CEE form connectors from all compliant manufacturers. The 6-hour clock position earth contact permits mating only with connectors of the same 220-250V voltage class, preventing cross-connections between incompatible electrical systems.\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"product-color-conventions\"\u003e\n \u003ch3\u003eVoltage Color Convention\u003c\/h3\u003e\n \u003cimg src=\"\/\/cdn.cybassets.com\/s\/files\/35719\/ckeditor\/pictures\/content_c059c811-5695-42fa-93f2-603bc0fe8739.jpg\" alt=\"IEC 60309 CEE clock face position diagram showing voltage color coding and earth contact positions for 3-pole, 4-pole, and 5-pole configurations\" style=\"max-width: 100%; margin: 1rem 0;\"\u003e\n \u003cp\u003eCEE form connectors use internationally standardized housing colors to indicate voltage class: Yellow for 110-130V, Blue for 200-250V, Red for 380-480V, and Black for 500-690V. The keyed clock position of the earth contact prevents cross-mating between different voltage systems, ensuring only compatible connectors can be joined. Always verify voltage and frequency compatibility with local electrical supply before installation.\u003c\/p\u003e\n \u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003c!-- Product JSON-LD structured data --\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n \"@context\": \"https:\/\/schema.org\",\n \"@type\": \"Product\",\n \"name\": \"KHTN6331 | KUPO CEE Inlet 63A 3P 220-250V 6h IP67\",\n \"description\": \"Part of KUPO's complete CEE form connector range spanning 16A to 125A and 110V to 400V, the KHTN6331 is a 63A inlet (panel-mount male) designed for 220-250V 3-pole (2P+E) circuits. Like every connector in the range, it features a flame-retardant PA6 (Polyamide 6) Nylon housing, nickel-plated brass contacts, and IP67 (Ingress Protection 67) watertight protection. The keyed earth contact at the 6-hour clock position and earth-first\/earth-last engagement sequence comply with IEC (International Electrotechnical Commission) 60309-1 and 60309-2 standards, ensuring safe interoperability with any compliant CEE connector.\",\n \"brand\": {\n \"@type\": \"Brand\",\n \"name\": \"KUPO\"\n },\n \"manufacturer\": {\n \"@type\": \"Organization\",\n \"name\": \"KUPO CO. LTD\",\n \"url\": \"https:\/\/www.kupopower.com\"\n },\n \"category\": \"Electrical Connectors \u003e Industrial Plugs \u0026 Sockets \u003e CEE Form (IEC 60309)\",\n \"sku\": \"KHTN6331\",\n \"mpn\": \"KHTN6331\",\n \"color\": \"Blue \u0026 Gray\",\n \"material\": \"PA6 Nylon (Flame Retardant)\",\n \"additionalProperty\": [\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Amperage Rating\",\n \"value\": \"63A Maximum\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Voltage Rating\",\n \"value\": \"AC 220-250V Maximum\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Number of Poles\",\n \"value\": \"3 (2P+E)\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Earth Contact Position\",\n \"value\": \"6h\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Suitable Cable Size\",\n \"value\": \"6-25 mmsq\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Housing Material\",\n \"value\": \"Flame Retardant PA6 Nylon\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Housing Color\",\n \"value\": \"Blue \u0026 Gray\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Contact Material\",\n \"value\": \"Brass with Nickel Plating\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"IP Rating\",\n \"value\": \"IP67 Watertight\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Working Temperature Range\",\n \"value\": \"-25 to 40 degrees Celsius\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Flange Dimensions (A\/B)\",\n \"value\": \"100 mm\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Cutout Dimensions (C\/D)\",\n \"value\": \"80 mm\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Dimension E\",\n \"value\": \"39 mm\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Dimension F\",\n \"value\": \"94.5 mm\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Dimension H\",\n \"value\": \"73 mm\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Connector Type\",\n \"value\": \"CEE Form Inlet (Panel-Mount Male)\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Connection Type\",\n \"value\": \"Screw-type coupling\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Standard\",\n \"value\": \"IEC\/EN 60309-1: 1999 +A1:2007 +A2:2012, IEC\/EN 60309-2: 1999 +A1:2007 +A2:2012\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Certifications\",\n \"value\": \"CE, RoHS, REACH\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Voltage Color Code\",\n \"value\": \"Blue = 220-250V\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"RoHS Compliant\",\n \"value\": \"Yes\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"REACH Compliant\",\n \"value\": \"Yes\"\n }\n ]\n}\n\u003c\/script\u003e\n\n\u003cstyle\u003e\n.kupo-faq-seo-block {\n margin: 3rem 0 0 0;\n padding: 0;\n border: 0;\n background: transparent;\n box-sizing: border-box;\n}\n.kupo-faq-seo-block h2 {\n margin: 0 0 1.6rem 0;\n font-size: 22px !important;\n font-weight: 700;\n line-height: 1.4;\n color: #005F96 !important;\n}\n.kupo-faq-seo-item {\n border-top: 1px solid #ececec;\n padding: 0.8rem 0;\n}\n.kupo-faq-seo-item:first-of-type {\n border-top: 0;\n padding-top: 0;\n}\n.kupo-faq-seo-item h3 {\n margin: 0 0 0.35rem 0;\n font-size: 17px !important;\n font-weight: 600;\n line-height: 1.45;\n color: #005F96 !important;\n}\n.kupo-faq-seo-item p {\n margin: 0;\n line-height: 1.6;\n color: #222222 !important;\n}\n\u003c\/style\u003e\n\u003csection class=\"kupo-faq-seo-block\" data-product-id=\"KHTN6331\" data-category=\"CEE Form (IEC 60309)\"\u003e\n \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n \u003cdiv class=\"kupo-faq-seo-item\"\u003e\n \u003ch3\u003eWhat is the KUPO KHTN633 and what are its primary specifications?\u003c\/h3\u003e\n \u003cp\u003eThe KUPO KHTN633 is an 63A CEE form inlet (panel-mount male) built to IEC (International Electrotechnical Commission) 60309-1 and 60309-2 standards for 220-250V single-phase power distribution. It features a 3-pole (2P+E) configuration that carries one live conductor, one neutral conductor, and one protective earth conductor. The flame-retardant PA6 (Polyamide 6) Nylon housing with nickel-plated brass contacts accepts cables from 10-35 mmsq. The IP44-rated housing has a flange dimension of 100 mm and requires a panel cutout of 85 mm.\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"kupo-faq-seo-item\"\u003e\n \u003ch3\u003eHow does the earth contact design of the KHTN633 enhance electrical safety?\u003c\/h3\u003e\n \u003cp\u003eAs a panel-mounted inlet feeding 63A 220-250V power into equipment, the KHTN633 prioritizes safe power transfer at the point of entry. The keyed earth contact at the 6h clock position physically prevents cross-mating with connectors from incompatible voltage systems. The protective earth on this 3-pole (2P+E) connector always engages first and releases last, ensuring the ground path is established before any of the 2 remaining contacts connect. The IP44 (Ingress Protection 44) rating protects the panel-mounted connection against splashing water from all directions and solid objects larger than 1mm, maintaining protection integrity within the enclosure.\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"kupo-faq-seo-item\"\u003e\n \u003ch3\u003eHow does the IEC 60309 standard ensure the KHTN633 works in multi-vendor installations?\u003c\/h3\u003e\n \u003cp\u003eThe KUPO KHTN633 is manufactured to IEC 60309-1 and IEC 60309-2 dimensional standards, ensuring full interoperability with CEE form connectors from all compliant manufacturers worldwide. To mate correctly, both connectors must share the same amperage rating (63A), voltage class (220-250V), pole configuration (3-pole (2P+E)), and earth contact clock position (6h). The clock position keying acts as a mechanical interlock: a 220-250V connector with a 6h earth position cannot physically engage with a connector keyed to a different clock position, preventing dangerous cross-connections between incompatible electrical systems.\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"kupo-faq-seo-item\"\u003e\n \u003ch3\u003eWhat installation steps are required to fit the KHTN633 into a panel enclosure?\u003c\/h3\u003e\n \u003cp\u003eCut the panel opening to the specified cutout dimensions. Mount the inlet from the rear of the panel so that the pins protrude through to the front. Secure with mounting hardware and wire the internal conductors to the terminals from behind the panel. The KHTN633 has a flange dimension of 100 mm and requires a panel cutout of 85 mm. The cable size range for this unit is 10-35 mmsq. All terminal screws face the same direction for faster wiring. The IP44 protection is maintained when the housing is properly closed and the cable gland is correctly tightened.\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"kupo-faq-seo-item\"\u003e\n \u003ch3\u003eWhat are the typical applications for the KHTN633?\u003c\/h3\u003e\n \u003cp\u003eAs a heavy-duty single-phase inlet, the KHTN633 serves main power feeds, industrial switchgear inputs, large motor drives, heavy machinery connections, and large-scale temporary event power distribution. Panel-mounted in distribution boxes, switchgear assemblies, and equipment enclosures, it provides a permanent 220-250V connection point for Single-phase loads including lighting, portable tools, general power outlets, workstation feeds, and individual equipment connections.\u003c\/p\u003e\n \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n \"@context\": \"https:\/\/schema.org\",\n \"@type\": \"FAQPage\",\n \"mainEntity\": [\n {\n \"@type\": \"Question\",\n \"name\": \"What is the KUPO KHTN633 and what are its primary specifications?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"The KUPO KHTN633 is an 63A CEE form inlet (panel-mount male) built to IEC (International Electrotechnical Commission) 60309-1 and 60309-2 standards for 220-250V single-phase power distribution. It features a 3-pole (2P+E) configuration that carries one live conductor, one neutral conductor, and one protective earth conductor. The flame-retardant PA6 (Polyamide 6) Nylon housing with nickel-plated brass contacts accepts cables from 10-35 mmsq. The IP44-rated housing has a flange dimension of 100 mm and requires a panel cutout of 85 mm.\"\n }\n },\n {\n \"@type\": \"Question\",\n \"name\": \"How does the earth contact design of the KHTN633 enhance electrical safety?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"As a panel-mounted inlet feeding 63A 220-250V power into equipment, the KHTN633 prioritizes safe power transfer at the point of entry. The keyed earth contact at the 6h clock position physically prevents cross-mating with connectors from incompatible voltage systems. The protective earth on this 3-pole (2P+E) connector always engages first and releases last, ensuring the ground path is established before any of the 2 remaining contacts connect. The IP44 (Ingress Protection 44) rating protects the panel-mounted connection against splashing water from all directions and solid objects larger than 1mm, maintaining protection integrity within the enclosure.\"\n }\n },\n {\n \"@type\": \"Question\",\n \"name\": \"How does the IEC 60309 standard ensure the KHTN633 works in multi-vendor installations?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"The KUPO KHTN633 is manufactured to IEC 60309-1 and IEC 60309-2 dimensional standards, ensuring full interoperability with CEE form connectors from all compliant manufacturers worldwide. To mate correctly, both connectors must share the same amperage rating (63A), voltage class (220-250V), pole configuration (3-pole (2P+E)), and earth contact clock position (6h). The clock position keying acts as a mechanical interlock: a 220-250V connector with a 6h earth position cannot physically engage with a connector keyed to a different clock position, preventing dangerous cross-connections between incompatible electrical systems.\"\n }\n },\n {\n \"@type\": \"Question\",\n \"name\": \"What installation steps are required to fit the KHTN633 into a panel enclosure?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"Cut the panel opening to the specified cutout dimensions. Mount the inlet from the rear of the panel so that the pins protrude through to the front. Secure with mounting hardware and wire the internal conductors to the terminals from behind the panel. The KHTN633 has a flange dimension of 100 mm and requires a panel cutout of 85 mm. The cable size range for this unit is 10-35 mmsq. All terminal screws face the same direction for faster wiring. The IP44 protection is maintained when the housing is properly closed and the cable gland is correctly tightened.\"\n }\n },\n {\n \"@type\": \"Question\",\n \"name\": \"What are the typical applications for the KHTN633?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"As a heavy-duty single-phase inlet, the KHTN633 serves main power feeds, industrial switchgear inputs, large motor drives, heavy machinery connections, and large-scale temporary event power distribution. Panel-mounted in distribution boxes, switchgear assemblies, and equipment enclosures, it provides a permanent 220-250V connection point for Single-phase loads including lighting, portable tools, general power outlets, workstation feeds, and individual equipment connections.\"\n }\n }\n ]\n}\n\u003c\/script\u003e\n\u003c!-- ==================== DOWNLOAD SECTION ==================== --\u003e\n\u003cstyle\u003e\n.kupo-download-section {\n margin: 2rem 0 0 0;\n padding: 0;\n border: 0;\n background: transparent;\n box-sizing: border-box;\n}\n.kupo-download-section h2 {\n margin: 0 0 1rem 0;\n font-size: 22px !important;\n font-weight: 700;\n line-height: 1.4;\n color: #005F96 !important;\n}\n.kupo-download-link {\n display: inline-flex;\n align-items: center;\n gap: 0.4rem;\n font-size: 16px !important;\n line-height: 1.5;\n color: #111111 !important;\n font-weight: 600;\n text-decoration: underline;\n}\n\u003c\/style\u003e\n\u003csection class=\"kupo-download-section\" data-product-id=\"KHTN6331\"\u003e\n \u003ch2\u003eDownload\u003c\/h2\u003e\n \u003ca class=\"kupo-download-link\" href=\"https:\/\/pub-87314d729f334121b80f91e16c4e7f60.r2.dev\/KHTN6331.pdf\" target=\"_blank\" rel=\"noopener\" download\u003e\n Download KHTN6331 Spec Sheet (PDF)\n \u003c\/a\u003e\n\u003c\/section\u003e","brand":"KUPO Power","offers":[{"title":"CEE Industrial (IEC 60309) \/ 63A \/ Panel Mount Inlet","offer_id":50208832553180,"sku":"KHTN6331","price":0.0,"currency_code":"TWD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/3491\/5548\/files\/KHTN6331.jpg?v=1777363482"},{"product_id":"khtn6351","title":"KHTN6351 - KUPO CEE Form 63A 5-Pole Industrial Inlet, 400V, IP67","description":"\u003c!-- KUPO Shopify paste-ready combined HTML for KHTN6351 --\u003e\n\u003c!-- Includes product description, Product JSON-LD, FAQ, FAQ JSON-LD, and Download section. --\u003e\n\n\u003cstyle\u003e\n.kupo-section-title {\n margin: 1.25rem 0 1rem 0;\n font-size: 22px !important;\n font-weight: 700;\n line-height: 1.3;\n color: #005F96 !important;\n letter-spacing: 0;\n}\n.product-description h3 {\n color: #005F96 !important;\n font-size: 18px !important;\n font-weight: bold;\n margin-top: 1.5rem;\n margin-bottom: 0.75rem;\n line-height: 1.35;\n letter-spacing: 0;\n}\n.product-description,\n.product-description p,\n.product-description li {\n color: #222222 !important;\n}\n\u003c\/style\u003e\n\n\u003ch2 class=\"kupo-section-title\"\u003eProduct Description\u003c\/h2\u003e\n\u003cdiv class=\"product-description\" data-sku=\"KHTN6351\" data-voltage=\"380-415V\" data-amperage=\"63A\" data-poles=\"5\" data-ip=\"IP67\"\u003e\n\n\n \u003cdiv class=\"product-overview\"\u003e\n \u003cp\u003eFor heavy industrial installations and primary distribution systems demanding high-current reliability, the KUPO KHTN6351 delivers a 63A CEE form inlet (panel-mount male) built to IEC (International Electrotechnical Commission) 60309-1 and 60309-2 standards. The flame-retardant PA6 (Polyamide 6) Nylon housing and nickel-plated brass contacts ensure durable, low-resistance performance, while the IP67 (Ingress Protection 67) watertight rating and keyed earth contact at the 6-hour clock position provide safe, error-free connections throughout the 380-415V voltage class.\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"product-features\"\u003e\n \u003ch3\u003eKey Features\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eProtective earth engages first and releases last, ensuring the ground path is established before live contacts connect\u003c\/li\u003e\n \u003cli\u003eKeyed earth contact at the 6-hour clock position prevents cross-mating with incompatible voltage systems\u003c\/li\u003e\n \u003cli\u003eIP67 watertight housing withstands temporary immersion up to 1 meter and complete dust ingress for harsh outdoor and wet environments\u003c\/li\u003e\n \u003cli\u003eRugged screw-type coupling maximizes mechanical strength and sealing integrity for stable performance in demanding conditions\u003c\/li\u003e\n \u003cli\u003eFlame-retardant PA6 (Polyamide 6) Nylon housing provides high impact resistance, electrical insulation, and self-extinguishing properties\u003c\/li\u003e\n \u003cli\u003eNickel-plated brass contacts deliver corrosion resistance and reliable low-resistance connections at sustained 63A loads\u003c\/li\u003e\n \u003cli\u003eAll terminal screws face the same direction for faster, more intuitive wiring\u003c\/li\u003e\n \u003cli\u003ePanel-mount design with standardized cutting hole dimensions for straightforward integration into enclosures, distribution boxes, and equipment panels\u003c\/li\u003e\n \u003cli\u003eRed-coded housing identifies the 380-415V voltage class per international IEC 60309 color convention\u003c\/li\u003e\n \u003cli\u003eRated for operation from -25 to 40 degrees Celsius\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"product-certifications\"\u003e\n \u003ch3\u003eCertifications \u0026amp; Standards\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eCE Marked: Low Voltage Directive 2014\/35\/EU\u003c\/li\u003e\n \u003cli\u003eIEC\/EN 60309-1: 1999 +A1:2007 +A2:2012. General requirements for industrial plugs, socket-outlets and couplers\u003c\/li\u003e\n \u003cli\u003eIEC\/EN 60309-2: 1999 +A1:2007 +A2:2012. Dimensional compatibility requirements for pin and contact-tube accessories\u003c\/li\u003e\n \u003cli\u003eRoHS Compliant: Directive 2011\/65\/EU and (EU)2015\/863\u003c\/li\u003e\n \u003cli\u003eREACH Compliant: Regulation No 1907\/2006, Article 33(1) Obligation\u003c\/li\u003e\n \u003cli\u003eIP67 Watertight\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"product-applications\"\u003e\n \u003ch3\u003eApplications\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eTemporary and permanent power distribution on construction sites\u003c\/li\u003e\n \u003cli\u003eThree-phase heavy machinery, motor drives, and HVAC (Heating, Ventilation, and Air Conditioning) systems\u003c\/li\u003e\n \u003cli\u003eWelding equipment and pump station power supply\u003c\/li\u003e\n \u003cli\u003eHeavy industrial main distribution feeds and generator connections\u003c\/li\u003e\n \u003cli\u003eSite main incomers and primary power infrastructure\u003c\/li\u003e\n \u003cli\u003eDistribution boards, switchgear assemblies, and equipment panel installations\u003c\/li\u003e\n \u003cli\u003eEntertainment and live event production\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"product-compatibility\"\u003e\n \u003ch3\u003eCompatibility\u003c\/h3\u003e\n \u003cp\u003eThe KUPO KHTN6351 is manufactured to IEC 60309-1 and IEC 60309-2 standards, ensuring dimensional compatibility with CEE form connectors from all compliant manufacturers. The 6-hour clock position earth contact permits mating only with connectors of the same 380-415V voltage class, preventing cross-connections between incompatible electrical systems.\u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"product-color-conventions\"\u003e\n \u003ch3\u003eVoltage Color Convention\u003c\/h3\u003e\n \u003cimg src=\"\/\/cdn.cybassets.com\/s\/files\/35719\/ckeditor\/pictures\/content_c059c811-5695-42fa-93f2-603bc0fe8739.jpg\" alt=\"IEC 60309 CEE clock face position diagram showing voltage color coding and earth contact positions for 3-pole, 4-pole, and 5-pole configurations\" style=\"max-width: 100%; margin: 1rem 0;\"\u003e\n \u003cp\u003eCEE form connectors use internationally standardized housing colors to indicate voltage class: Yellow for 110-130V, Blue for 200-250V, Red for 380-480V, and Black for 500-690V. The keyed clock position of the earth contact prevents cross-mating between different voltage systems, ensuring only compatible connectors can be joined. Always verify voltage and frequency compatibility with local electrical supply before installation.\u003c\/p\u003e\n \u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003c!-- Product JSON-LD structured data --\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n \"@context\": \"https:\/\/schema.org\",\n \"@type\": \"Product\",\n \"name\": \"KHTN6351 | KUPO CEE Inlet 63A 5P 380-415V 6h IP67\",\n \"description\": \"For heavy industrial installations and primary distribution systems demanding high-current reliability, the KUPO KHTN6351 delivers a 63A CEE form inlet (panel-mount male) built to IEC (International Electrotechnical Commission) 60309-1 and 60309-2 standards. The flame-retardant PA6 (Polyamide 6) Nylon housing and nickel-plated brass contacts ensure durable, low-resistance performance, while the IP67 (Ingress Protection 67) watertight rating and keyed earth contact at the 6-hour clock position provide safe, error-free connections throughout the 380-415V voltage class.\",\n \"brand\": {\n \"@type\": \"Brand\",\n \"name\": \"KUPO\"\n },\n \"manufacturer\": {\n \"@type\": \"Organization\",\n \"name\": \"KUPO CO. LTD\",\n \"url\": \"https:\/\/www.kupopower.com\"\n },\n \"category\": \"Electrical Connectors \u003e Industrial Plugs \u0026 Sockets \u003e CEE Form (IEC 60309)\",\n \"sku\": \"KHTN6351\",\n \"mpn\": \"KHTN6351\",\n \"color\": \"Red \u0026 Gray\",\n \"material\": \"PA6 Nylon (Flame Retardant)\",\n \"additionalProperty\": [\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Amperage Rating\",\n \"value\": \"63A Maximum\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Voltage Rating\",\n \"value\": \"AC 380-415V Maximum\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Number of Poles\",\n \"value\": \"5 (3P+N+E)\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Earth Contact Position\",\n \"value\": \"6h\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Suitable Cable Size\",\n \"value\": \"6-25 mmsq\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Housing Material\",\n \"value\": \"Flame Retardant PA6 Nylon\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Housing Color\",\n \"value\": \"Red \u0026 Gray\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Contact Material\",\n \"value\": \"Brass with Nickel Plating\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"IP Rating\",\n \"value\": \"IP67 Watertight\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Working Temperature Range\",\n \"value\": \"-25 to 40 degrees Celsius\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Flange Dimensions (A\/B)\",\n \"value\": \"100 mm\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Cutout Dimensions (C\/D)\",\n \"value\": \"80 mm\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Dimension E\",\n \"value\": \"39 mm\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Dimension F\",\n \"value\": \"94.5 mm\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Dimension H\",\n \"value\": \"73 mm\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Connector Type\",\n \"value\": \"CEE Form Inlet (Panel-Mount Male)\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Connection Type\",\n \"value\": \"Screw-type coupling\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Standard\",\n \"value\": \"IEC\/EN 60309-1: 1999 +A1:2007 +A2:2012, IEC\/EN 60309-2: 1999 +A1:2007 +A2:2012\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Certifications\",\n \"value\": \"CE, RoHS, REACH\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"Voltage Color Code\",\n \"value\": \"Red = 380-415V\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"RoHS Compliant\",\n \"value\": \"Yes\"\n },\n {\n \"@type\": \"PropertyValue\",\n \"name\": \"REACH Compliant\",\n \"value\": \"Yes\"\n }\n ]\n}\n\u003c\/script\u003e\n\n\u003cstyle\u003e\n.kupo-faq-seo-block {\n margin: 3rem 0 0 0;\n padding: 0;\n border: 0;\n background: transparent;\n box-sizing: border-box;\n}\n.kupo-faq-seo-block h2 {\n margin: 0 0 1.6rem 0;\n font-size: 22px !important;\n font-weight: 700;\n line-height: 1.4;\n color: #005F96 !important;\n}\n.kupo-faq-seo-item {\n border-top: 1px solid #ececec;\n padding: 0.8rem 0;\n}\n.kupo-faq-seo-item:first-of-type {\n border-top: 0;\n padding-top: 0;\n}\n.kupo-faq-seo-item h3 {\n margin: 0 0 0.35rem 0;\n font-size: 17px !important;\n font-weight: 600;\n line-height: 1.45;\n color: #005F96 !important;\n}\n.kupo-faq-seo-item p {\n margin: 0;\n line-height: 1.6;\n color: #222222 !important;\n}\n\u003c\/style\u003e\n\u003csection class=\"kupo-faq-seo-block\" data-product-id=\"KHTN6351\" data-category=\"CEE Form (IEC 60309)\"\u003e\n \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n \u003cdiv class=\"kupo-faq-seo-item\"\u003e\n \u003ch3\u003eWhat are the key features and ratings of the KUPO KHTN635?\u003c\/h3\u003e\n \u003cp\u003eThe KUPO KHTN635 is an 63A CEE form inlet (panel-mount male) built to IEC (International Electrotechnical Commission) 60309-1 and 60309-2 standards for 380-415V three-phase power distribution. It features a 5-pole (3P+N+E) configuration that carries three live conductors, one neutral conductor, and one protective earth conductor for complete power distribution. The flame-retardant PA6 (Polyamide 6) Nylon housing with nickel-plated brass contacts accepts cables from 10-35 mmsq. The IP44-rated housing has a flange dimension of 120 mm and requires a panel cutout of 100 mm.\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"kupo-faq-seo-item\"\u003e\n \u003ch3\u003eWhat safety mechanisms does the KHTN635 include to prevent incorrect connections?\u003c\/h3\u003e\n \u003cp\u003eAs a panel-mounted inlet feeding 63A 380-415V power into equipment, the KHTN635 prioritizes safe power transfer at the point of entry. The keyed earth contact at the 6h clock position physically prevents cross-mating with connectors from incompatible voltage systems. The protective earth on this 5-pole (3P+N+E) connector always engages first and releases last, ensuring the ground path is established before any of the 4 remaining contacts connect. The IP44 (Ingress Protection 44) rating protects the panel-mounted connection against splashing water from all directions and solid objects larger than 1mm, maintaining protection integrity within the enclosure.\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"kupo-faq-seo-item\"\u003e\n \u003ch3\u003eIs the KHTN635 compatible with CEE form connectors from other manufacturers?\u003c\/h3\u003e\n \u003cp\u003eThe KUPO KHTN635 is manufactured to IEC 60309-1 and IEC 60309-2 dimensional standards, ensuring full interoperability with CEE form connectors from all compliant manufacturers worldwide. To mate correctly, both connectors must share the same amperage rating (63A), voltage class (380-415V), pole configuration (5-pole (3P+N+E)), and earth contact clock position (6h). The clock position keying acts as a mechanical interlock: a 380-415V connector with a 6h earth position cannot physically engage with a connector keyed to a different clock position, preventing dangerous cross-connections between incompatible electrical systems.\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"kupo-faq-seo-item\"\u003e\n \u003ch3\u003eWhat are the panel cutout requirements for installing the KHTN635?\u003c\/h3\u003e\n \u003cp\u003eCut the panel opening to the specified cutout dimensions. Mount the inlet from the rear of the panel so that the pins protrude through to the front. Secure with mounting hardware and wire the internal conductors to the terminals from behind the panel. The KHTN635 has a flange dimension of 120 mm and requires a panel cutout of 100 mm. The cable size range for this unit is 10-35 mmsq. All terminal screws face the same direction for faster wiring. The IP44 protection is maintained when the housing is properly closed and the cable gland is correctly tightened.\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"kupo-faq-seo-item\"\u003e\n \u003ch3\u003eIn what environments and industries is the KUPO KHTN635 commonly used?\u003c\/h3\u003e\n \u003cp\u003eAs a heavy-duty three-phase inlet, the KHTN635 serves main power feeds, industrial switchgear inputs, large motor drives, heavy machinery connections, and large-scale temporary event power distribution. Panel-mounted in distribution boxes, switchgear assemblies, and equipment enclosures, it provides a permanent 380-415V connection point for Full three-phase distribution with the ability to supply both three-phase and single-phase loads from one connection. Essential for distribution boards, mixed-load panels, and temporary event power systems.\u003c\/p\u003e\n \u003c\/div\u003e\n \u003cdiv class=\"kupo-faq-seo-item\"\u003e\n \u003ch3\u003eWhy does the KHTN635 use a 5-pole configuration instead of 4-pole?\u003c\/h3\u003e\n \u003cp\u003eThe KHTN635 uses a 5-pole (3P+N+E) configuration that carries three live conductors, one neutral conductor, and one protective earth conductor for complete power distribution. The critical difference from 4-pole (3P+E) is the inclusion of a neutral conductor. A 4-pole connector carries three live phases plus earth, which is sufficient for balanced three-phase loads like motors and pumps. However, when the installation needs to supply both three-phase and single-phase loads from one connection, a neutral conductor is essential. The 5-pole KHTN635 enables distribution boards and temporary power systems to derive single-phase circuits (line-to-neutral) alongside three-phase feeds, making it the standard choice for event power distribution and mixed-load industrial panels.\u003c\/p\u003e\n \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n \"@context\": \"https:\/\/schema.org\",\n \"@type\": \"FAQPage\",\n \"mainEntity\": [\n {\n \"@type\": \"Question\",\n \"name\": \"What are the key features and ratings of the KUPO KHTN635?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"The KUPO KHTN635 is an 63A CEE form inlet (panel-mount male) built to IEC (International Electrotechnical Commission) 60309-1 and 60309-2 standards for 380-415V three-phase power distribution. It features a 5-pole (3P+N+E) configuration that carries three live conductors, one neutral conductor, and one protective earth conductor for complete power distribution. The flame-retardant PA6 (Polyamide 6) Nylon housing with nickel-plated brass contacts accepts cables from 10-35 mmsq. The IP44-rated housing has a flange dimension of 120 mm and requires a panel cutout of 100 mm.\"\n }\n },\n {\n \"@type\": \"Question\",\n \"name\": \"What safety mechanisms does the KHTN635 include to prevent incorrect connections?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"As a panel-mounted inlet feeding 63A 380-415V power into equipment, the KHTN635 prioritizes safe power transfer at the point of entry. The keyed earth contact at the 6h clock position physically prevents cross-mating with connectors from incompatible voltage systems. The protective earth on this 5-pole (3P+N+E) connector always engages first and releases last, ensuring the ground path is established before any of the 4 remaining contacts connect. The IP44 (Ingress Protection 44) rating protects the panel-mounted connection against splashing water from all directions and solid objects larger than 1mm, maintaining protection integrity within the enclosure.\"\n }\n },\n {\n \"@type\": \"Question\",\n \"name\": \"Is the KHTN635 compatible with CEE form connectors from other manufacturers?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"The KUPO KHTN635 is manufactured to IEC 60309-1 and IEC 60309-2 dimensional standards, ensuring full interoperability with CEE form connectors from all compliant manufacturers worldwide. To mate correctly, both connectors must share the same amperage rating (63A), voltage class (380-415V), pole configuration (5-pole (3P+N+E)), and earth contact clock position (6h). The clock position keying acts as a mechanical interlock: a 380-415V connector with a 6h earth position cannot physically engage with a connector keyed to a different clock position, preventing dangerous cross-connections between incompatible electrical systems.\"\n }\n },\n {\n \"@type\": \"Question\",\n \"name\": \"What are the panel cutout requirements for installing the KHTN635?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"Cut the panel opening to the specified cutout dimensions. Mount the inlet from the rear of the panel so that the pins protrude through to the front. Secure with mounting hardware and wire the internal conductors to the terminals from behind the panel. The KHTN635 has a flange dimension of 120 mm and requires a panel cutout of 100 mm. The cable size range for this unit is 10-35 mmsq. All terminal screws face the same direction for faster wiring. The IP44 protection is maintained when the housing is properly closed and the cable gland is correctly tightened.\"\n }\n },\n {\n \"@type\": \"Question\",\n \"name\": \"In what environments and industries is the KUPO KHTN635 commonly used?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"As a heavy-duty three-phase inlet, the KHTN635 serves main power feeds, industrial switchgear inputs, large motor drives, heavy machinery connections, and large-scale temporary event power distribution. Panel-mounted in distribution boxes, switchgear assemblies, and equipment enclosures, it provides a permanent 380-415V connection point for Full three-phase distribution with the ability to supply both three-phase and single-phase loads from one connection. Essential for distribution boards, mixed-load panels, and temporary event power systems.\"\n }\n },\n {\n \"@type\": \"Question\",\n \"name\": \"Why does the KHTN635 use a 5-pole configuration instead of 4-pole?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"The KHTN635 uses a 5-pole (3P+N+E) configuration that carries three live conductors, one neutral conductor, and one protective earth conductor for complete power distribution. The critical difference from 4-pole (3P+E) is the inclusion of a neutral conductor. A 4-pole connector carries three live phases plus earth, which is sufficient for balanced three-phase loads like motors and pumps. However, when the installation needs to supply both three-phase and single-phase loads from one connection, a neutral conductor is essential. The 5-pole KHTN635 enables distribution boards and temporary power systems to derive single-phase circuits (line-to-neutral) alongside three-phase feeds, making it the standard choice for event power distribution and mixed-load industrial panels.\"\n }\n }\n ]\n}\n\u003c\/script\u003e\n\u003c!-- ==================== DOWNLOAD SECTION ==================== --\u003e\n\u003cstyle\u003e\n.kupo-download-section {\n margin: 2rem 0 0 0;\n padding: 0;\n border: 0;\n background: transparent;\n box-sizing: border-box;\n}\n.kupo-download-section h2 {\n margin: 0 0 1rem 0;\n font-size: 22px !important;\n font-weight: 700;\n line-height: 1.4;\n color: #005F96 !important;\n}\n.kupo-download-link {\n display: inline-flex;\n align-items: center;\n gap: 0.4rem;\n font-size: 16px !important;\n line-height: 1.5;\n color: #111111 !important;\n font-weight: 600;\n text-decoration: underline;\n}\n\u003c\/style\u003e\n\u003csection class=\"kupo-download-section\" data-product-id=\"KHTN6351\"\u003e\n \u003ch2\u003eDownload\u003c\/h2\u003e\n \u003ca class=\"kupo-download-link\" href=\"https:\/\/pub-87314d729f334121b80f91e16c4e7f60.r2.dev\/KHTN6351.pdf\" target=\"_blank\" rel=\"noopener\" download\u003e\n Download KHTN6351 Spec Sheet (PDF)\n \u003c\/a\u003e\n\u003c\/section\u003e","brand":"KUPO Power","offers":[{"title":"CEE Industrial (IEC 60309) \/ 63A \/ Panel Mount Inlet","offer_id":50208832585948,"sku":"KHTN6351","price":0.0,"currency_code":"TWD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/3491\/5548\/files\/KHTN6351.jpg?v=1777363482"}],"url":"https:\/\/kupopower.com\/collections\/cee-63a.oembed","provider":"KUPO Power","version":"1.0","type":"link"}