{"product_id":"pfls-nbl","title":"PFLS-NBL-S120M40A - PowerFit 400A Source Line Connector, Blue (N)","description":"\u003c!-- Combined Shopify product HTML for PFLS-NBL-S120M40A --\u003e\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.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 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.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=\"product-description\" data-sku=\"PFLS-NBL-S120M40A\"\u003e\n  \u003ch2 class=\"kupo-section-title\"\u003eProduct Description\u003c\/h2\u003e\n\u003c!-- PowerFit 400A Line Source Connector (Blue) | PFLS-NBL-S120M40A | 2026-03-23 --\u003e\n\n\u003cdiv class=\"product-description\" data-sku=\"PFLS-NBL-S120M40A\" data-color=\"Blue\"\u003e\n\n  \u003cdiv class=\"product-overview\"\u003e\n    \u003cp\u003eThe PFLS-NBL-S120M40A is a 400A inline cable connector for neutral (N) distribution, delivering the IEC-standard blue neutral identification adopted across most of the world's industrial power systems. This Line Source connector houses the male contact and innovative patent key-release pin, enabling tool-free disconnection while maintaining a low-impedance neutral return path. Engineered for global industrial infrastructure where neutral is the backbone of three-phase power balance and operational safety.\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\u003eThe neutral function is critical: it closes three-phase current loops and balances voltage across all three phases. Contact resistance below 0.1 milliohms and insulation integrity above 5000M Ohms ensure that current imbalances are minimized, protecting sensitive electronic loads and preventing voltage rise across the distribution network.\u003c\/li\u003e\n      \u003cli\u003eThe male contact and key-release mechanism enable rapid, deliberate mating and unmating without specialized tools. In multi-circuit installations where neutral is shared, controlled key-release disconnection prevents accidental circuit isolation and maintains system voltage stability during maintenance or reconfiguration.\u003c\/li\u003e\n      \u003cli\u003eThe source variant uses a shorter polyoxymethylene (POM) cotter pin optimized for cable-mounted operation. Field disassembly with a small slotted screwdriver allows inspection, cleaning, or pin replacement without downtime, ensuring continuous neutral connectivity during troubleshooting.\u003c\/li\u003e\n      \u003cli\u003eRated for 400A continuous with 120mm² cable, scaling to 660A with 240mm² cable. Neutral carries up to 100% of phase current in unbalanced loads; this connector is sized to handle full-phase amperage, preventing neutral bottlenecks that can degrade system performance.\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\u003eBlue is the universal neutral color under IEC conventions - the most widely adopted standard across Europe, Asia, Africa, and numerous regions worldwide. This connector ensures consistent neutral identification in international installations, joint ventures, and multi-regional power systems without re-specification or retraining.\u003c\/li\u003e\n      \u003cli\u003eTÜV Rheinland certified (ID 1111303479), CE marked, RoHS, and REACH compliant. Meets all current IEC 60364 (Wiring Rules), EN standards, and regulatory requirements for industrial electrical installations worldwide.\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n\n\n  \u003cdiv class=\"product-applications\"\u003e\n    \u003ch3\u003eApplications\u003c\/h3\u003e\n    \u003cul\u003e\n\u003cli\u003eGlobal industrial power distribution centers requiring IEC-standard neutral identification\u003c\/li\u003e\n\u003cli\u003eThree-phase systems with unbalanced loads requiring reliable return-path current handling\u003c\/li\u003e\n\u003cli\u003eEuropean, Asian, and multi-regional installations where blue neutral is mandatory\u003c\/li\u003e\n\u003cli\u003eHigh-cycle reconfigurable distribution hubs (500+ mating cycles)\u003c\/li\u003e\n\u003cli\u003eCable-to-cable neutral handoff in modular and scalable power systems\u003c\/li\u003e\n\u003cli\u003eClean-room and critical facilities requiring UL94-V0 flame resistance\u003c\/li\u003e\n\u003cli\u003eOutdoor installations with IP67 sealed mating protection\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 PFLS-NBL-S120M40A mates with corresponding PFLD (Line Drain) connectors and PFPS\/PFPD panel-mount variants. Compatible with major brands of single-pole power connectors. R120 reduction sleeve (brass, silver-plated) accommodates up to 16.50mm diameter wire.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"product-color-conventions\"\u003e\n    \u003ch3\u003ePhase \/ Wire Color Convention\u003c\/h3\u003e\n    \u003cdiv style=\"overflow-x: auto; -webkit-overflow-scrolling: touch;\"\u003e\n\u003ctable style=\"width: 100%; min-width: 540px; border-collapse: collapse; margin: 12px 0; border: 2px solid #999999;\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n  \u003cth style=\"background-color: #e0e0e0; color: #333333; font-weight: bold; padding: 10px 8px; text-align: left; padding-left: 14px; border: 1px solid #cccccc; border-top: 2px solid #999999; border-left: 2px solid #999999; font-size: 14px; width: 22%;\"\u003eRegion\u003c\/th\u003e\n  \u003cth style=\"background-color: #e0e0e0; color: #333333; font-weight: bold; padding: 10px 8px; text-align: center; border: 1px solid #cccccc; border-top: 2px solid #999999; font-size: 14px; width: 13%;\"\u003eL1\u003c\/th\u003e\n  \u003cth style=\"background-color: #e0e0e0; color: #333333; font-weight: bold; padding: 10px 8px; text-align: center; border: 1px solid #cccccc; border-top: 2px solid #999999; font-size: 14px; width: 13%;\"\u003eL2\u003c\/th\u003e\n  \u003cth style=\"background-color: #e0e0e0; color: #333333; font-weight: bold; padding: 10px 8px; text-align: center; border: 1px solid #cccccc; border-top: 2px solid #999999; font-size: 14px; width: 13%;\"\u003eL3\u003c\/th\u003e\n  \u003cth style=\"background-color: #e0e0e0; color: #333333; font-weight: bold; padding: 10px 8px; text-align: center; border: 1px solid #cccccc; border-top: 2px solid #999999; font-size: 14px; width: 13%;\"\u003eN\u003c\/th\u003e\n  \u003cth style=\"background-color: #e0e0e0; color: #333333; font-weight: bold; padding: 10px 8px; text-align: center; border: 1px solid #cccccc; border-top: 2px solid #999999; border-right: 2px solid #999999; font-size: 14px; width: 26%;\"\u003eGround\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n  \u003ctd style=\"background-color: #f0f0f0; color: #333333; font-weight: bold; font-size: 13px; padding: 6px 8px 6px 14px; text-align: left; border: 1px solid #cccccc; border-left: 2px solid #999999;\"\u003eNA 120\/208V \u003csup\u003e1\u003c\/sup\u003e\n\u003c\/td\u003e\n  \u003ctd style=\"background-color: #222222; height: 38px; border: 1px solid #cccccc;\"\u003e\u003c\/td\u003e\n  \u003ctd style=\"background-color: #CC0000; border: 1px solid #cccccc;\"\u003e\u003c\/td\u003e\n  \u003ctd style=\"background-color: #003399; border: 1px solid #cccccc;\"\u003e\u003c\/td\u003e\n  \u003ctd style=\"background-color: #ffffff; border: 1px solid #cccccc;\"\u003e\u003c\/td\u003e\n  \u003ctd style=\"background-color: #228B22; color: #ffffff; font-weight: bold; font-size: 12px; text-align: center; border: 1px solid #cccccc; border-right: 2px solid #999999;\"\u003eGreen \/ G-Y\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n  \u003ctd style=\"background-color: #f0f0f0; color: #333333; font-weight: bold; font-size: 13px; padding: 6px 8px 6px 14px; text-align: left; border: 1px solid #cccccc; border-left: 2px solid #999999;\"\u003eNA 277\/480V \u003csup\u003e2\u003c\/sup\u003e\n\u003c\/td\u003e\n  \u003ctd style=\"background-color: #8B4513; height: 38px; border: 1px solid #cccccc;\"\u003e\u003c\/td\u003e\n  \u003ctd style=\"background-color: #CC6600; border: 1px solid #cccccc;\"\u003e\u003c\/td\u003e\n  \u003ctd style=\"background-color: #DAA520; border: 1px solid #cccccc;\"\u003e\u003c\/td\u003e\n  \u003ctd style=\"background-color: #888888; border: 1px solid #cccccc;\"\u003e\u003c\/td\u003e\n  \u003ctd style=\"background-color: #228B22; color: #ffffff; font-weight: bold; font-size: 12px; text-align: center; border: 1px solid #cccccc; border-right: 2px solid #999999;\"\u003eGreen \/ G-Y\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n  \u003ctd style=\"background-color: #f0f0f0; color: #333333; font-weight: bold; font-size: 13px; padding: 6px 8px 6px 14px; text-align: left; border: 1px solid #cccccc; border-left: 2px solid #999999;\"\u003eIEC 60446 \u003csup\u003e3\u003c\/sup\u003e\n\u003c\/td\u003e\n  \u003ctd style=\"background-color: #8B4513; height: 38px; border: 1px solid #cccccc;\"\u003e\u003c\/td\u003e\n  \u003ctd style=\"background-color: #222222; border: 1px solid #cccccc;\"\u003e\u003c\/td\u003e\n  \u003ctd style=\"background-color: #888888; border: 1px solid #cccccc;\"\u003e\u003c\/td\u003e\n  \u003ctd style=\"background-color: #003399; border: 1px solid #cccccc;\"\u003e\u003c\/td\u003e\n  \u003ctd style=\"background-color: #228B22; color: #ffffff; font-weight: bold; font-size: 12px; text-align: center; border: 1px solid #cccccc; border-right: 2px solid #999999;\"\u003eGreen-Yellow\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n  \u003ctd style=\"background-color: #f0f0f0; color: #333333; font-weight: bold; font-size: 13px; padding: 6px 8px 6px 14px; text-align: left; border: 1px solid #cccccc; border-left: 2px solid #999999;\"\u003eAU\/NZ Legacy \u003csup\u003e4\u003c\/sup\u003e\n\u003c\/td\u003e\n  \u003ctd style=\"background-color: #CC0000; height: 38px; border: 1px solid #cccccc;\"\u003e\u003c\/td\u003e\n  \u003ctd style=\"background-color: #ffffff; border: 1px solid #cccccc;\"\u003e\u003c\/td\u003e\n  \u003ctd style=\"background-color: #003399; border: 1px solid #cccccc;\"\u003e\u003c\/td\u003e\n  \u003ctd style=\"background-color: #222222; border: 1px solid #cccccc;\"\u003e\u003c\/td\u003e\n  \u003ctd style=\"background-color: #228B22; color: #ffffff; font-weight: bold; font-size: 12px; text-align: center; border: 1px solid #cccccc; border-right: 2px solid #999999;\"\u003eGreen-Yellow\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n  \u003ctd style=\"background-color: #f0f0f0; color: #333333; font-weight: bold; font-size: 13px; padding: 6px 8px 6px 14px; text-align: left; border: 1px solid #cccccc; border-left: 2px solid #999999; border-bottom: 2px solid #999999;\"\u003eChina \u003csup\u003e5\u003c\/sup\u003e\n\u003c\/td\u003e\n  \u003ctd style=\"background-color: #DAA520; height: 38px; border: 1px solid #cccccc; border-bottom: 2px solid #999999;\"\u003e\u003c\/td\u003e\n  \u003ctd style=\"background-color: #228B22; border: 1px solid #cccccc; border-bottom: 2px solid #999999;\"\u003e\u003c\/td\u003e\n  \u003ctd style=\"background-color: #CC0000; border: 1px solid #cccccc; border-bottom: 2px solid #999999;\"\u003e\u003c\/td\u003e\n  \u003ctd style=\"background-color: #4682B4; border: 1px solid #cccccc; border-bottom: 2px solid #999999;\"\u003e\u003c\/td\u003e\n  \u003ctd style=\"background-color: #228B22; color: #ffffff; font-weight: bold; font-size: 12px; text-align: center; border: 1px solid #cccccc; border-right: 2px solid #999999; border-bottom: 2px solid #999999;\"\u003eGreen-Yellow\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n    \u003cp style=\"font-size: 12px; color: #555555; line-height: 1.6; margin-top: 6px;\"\u003e\u003csup style=\"color: #555; font-weight: bold;\"\u003e1\u003c\/sup\u003e North America 120\/208V (NEMA \/ NEC)   \u003csup style=\"color: #555; font-weight: bold;\"\u003e2\u003c\/sup\u003e North America 277\/480V (NEMA \/ NEC)   \u003csup style=\"color: #555; font-weight: bold;\"\u003e3\u003c\/sup\u003e Europe, UK, Australia (current IEC 60446)\u003cbr\u003e\u003csup style=\"color: #555; font-weight: bold;\"\u003e4\u003c\/sup\u003e Australia \/ New Zealand legacy (pre-IEC)   \u003csup style=\"color: #555; font-weight: bold;\"\u003e5\u003c\/sup\u003e China (GB 50303)   \u003cstrong\u003eG-Y\u003c\/strong\u003e = Green-Yellow (earth\/ground)\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"Product\",\n  \"name\": \"PFLS-NBL-S120M40A | PowerFit 400A Line Source, Neutral (N) Blue (IEC - European)\",\n  \"description\": \"KUPO PowerFit 400A Line Source single-pole connector with blue housing for IEC - European power distribution systems. Male Contact, patent key-release pin for safe disconnection, M40 cable gland with sealing bushing, IP67 rated when mated, silver-plated brass contacts, dual-rated 400A\/660A, 1000V AC \/ 1500V DC maximum, TUV certified.\",\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 Single-Pole Connectors \u003e PowerFit\",\n  \"sku\": \"PFLS-NBL-S120M40A\",\n  \"mpn\": \"PFLS-NBL-S120M40A\",\n  \"color\": \"Blue\",\n  \"material\": \"Non-conductive thermoplastic housing; Brass silver-plated contacts\",\n  \"additionalProperty\": [\n    {\n      \"@type\": \"PropertyValue\",\n      \"name\": \"Voltage Rating\",\n      \"value\": \"1000V AC \/ 1500V DC Maximum\"\n    },\n    {\n      \"@type\": \"PropertyValue\",\n      \"name\": \"Amperage Rating\",\n      \"value\": \"400A continuous (120mm\u0026sup2; cable) \/ 660A continuous (240mm\u0026sup2; cable)\"\n    },\n    {\n      \"@type\": \"PropertyValue\",\n      \"name\": \"Test Voltage\",\n      \"value\": \"4500V AC\"\n    },\n    {\n      \"@type\": \"PropertyValue\",\n      \"name\": \"Short Circuit Rating\",\n      \"value\": \"Up to 35.5 kiloamperes\"\n    },\n    {\n      \"@type\": \"PropertyValue\",\n      \"name\": \"Insulation Resistance\",\n      \"value\": \"Greater than 5000 megohms at 500V AC\"\n    },\n    {\n      \"@type\": \"PropertyValue\",\n      \"name\": \"Contact Resistance\",\n      \"value\": \"0.1 milliohms\"\n    },\n    {\n      \"@type\": \"PropertyValue\",\n      \"name\": \"Connector Type\",\n      \"value\": \"Line Source (Male Contact)\"\n    },\n    {\n      \"@type\": \"PropertyValue\",\n      \"name\": \"Connection Mechanism\",\n      \"value\": \"Push-and-Twist with Key-Release Mechanism\"\n    },\n    {\n      \"@type\": \"PropertyValue\",\n      \"name\": \"Contact Material\",\n      \"value\": \"Brass (Silver-Plated)\"\n    },\n    {\n      \"@type\": \"PropertyValue\",\n      \"name\": \"Housing Material\",\n      \"value\": \"Non-conductive high impact-resistant thermoplastic (UL94-V0 flame retardant)\"\n    },\n    {\n      \"@type\": \"PropertyValue\",\n      \"name\": \"Cotter Pin Material\",\n      \"value\": \"POM (Polyoxymethylene)\"\n    },\n    {\n      \"@type\": \"PropertyValue\",\n      \"name\": \"Cable Gland\",\n      \"value\": \"M40 x 1.5 with sealing bushing (Inner Diameter: 22mm and 33mm)\"\n    },\n    {\n      \"@type\": \"PropertyValue\",\n      \"name\": \"Set Screw Torque\",\n      \"value\": \"10.5 N\/meter minimum\"\n    },\n    {\n      \"@type\": \"PropertyValue\",\n      \"name\": \"IP Rating\",\n      \"value\": \"IP67 when mated\"\n    },\n    {\n      \"@type\": \"PropertyValue\",\n      \"name\": \"Flame Class\",\n      \"value\": \"UL94-V0\"\n    },\n    {\n      \"@type\": \"PropertyValue\",\n      \"name\": \"Working Temperature Range\",\n      \"value\": \"45 to 85 degrees Celsius\"\n    },\n    {\n      \"@type\": \"PropertyValue\",\n      \"name\": \"Mating Cycles\",\n      \"value\": \"500\"\n    },\n    {\n      \"@type\": \"PropertyValue\",\n      \"name\": \"TUV Certification ID\",\n      \"value\": \"1111303479\"\n    },\n    {\n      \"@type\": \"PropertyValue\",\n      \"name\": \"Certifications\",\n      \"value\": \"TUV Rheinland, CE, RoHS, REACH\"\n    },\n    {\n      \"@type\": \"PropertyValue\",\n      \"name\": \"Phase Convention\",\n      \"value\": \"Neutral (N) (IEC - European)\"\n    },\n    {\n      \"@type\": \"PropertyValue\",\n      \"name\": \"Housing Color\",\n      \"value\": \"Blue\"\n    }\n  ]\n}\n\u003c\/script\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"kupo-faq-seo-block\" data-product-id=\"PFLS-NBL-S120M40A\" data-category=\"PowerFit 400A Connectors\"\u003e\n  \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n  \u003cdiv class=\"kupo-faq-seo-item\"\u003e\n    \u003ch3\u003eWhy was PFLS-NBL-S120M40A designed with a key-release mechanism?\u003c\/h3\u003e\n    \u003cp\u003ePFLS-NBL-S120M40A is a KUPO PowerFit 400A line source connector with a blue housing, designated for the Neutral (N) conductor under Europe and UK (IEC 60446) conventions. As the source side of an inline cable connection, it features the innovative patent key-release pin that enables tool-free disconnection. The push-and-twist mechanism secures the connection during operation while allowing rapid uncoupling when needed. It is commonly deployed in sports venue and stadium event applications. Stadium events combine massive power demands with outdoor exposure and strict safety requirements.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"kupo-faq-seo-item\"\u003e\n    \u003ch3\u003eHow does PFLS-NBL-S120M40A maintain electrical integrity at high current loads?\u003c\/h3\u003e\n    \u003cp\u003ePFLS-NBL-S120M40A is rated for 400 amperes continuous with 120mm2 cable, scaling to 660 amperes with 240mm2 cable. The maximum voltage rating is 1000V AC or 1500V DC. The M40 cable gland accommodates cables through two included rubber bushings (inner diameter 23mm and 33mm), and the R120 reduction sleeve (brass with silver plating) handles conductor diameters up to 16.50mm. Set screws require a minimum torque of 10.5 N\/m for reliable termination.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"kupo-faq-seo-item\"\u003e\n    \u003ch3\u003eWhy is blue used for the neutral connector PFLS-NBL-S120M40A in Europe and UK (IEC 60446) systems?\u003c\/h3\u003e\n    \u003cp\u003eBlue as Neutral follows IEC 60446, the current harmonized European and UK standard. Under IEC, blue is exclusively reserved for the neutral conductor. This is the most commonly specified neutral color in international installations and is mandatory in EU member states. On the Line Source connector, the blue housing wraps the 170mm body including the area around the key-release mechanism. This means the phase is identifiable even during the push-and-twist connection process, reducing the chance of connecting to the wrong N circuit. Using blue for neutral in IEC jurisdictions is not optional. It is a code requirement that simplifies circuit identification and improves safety across multi-national installations.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"kupo-faq-seo-item\"\u003e\n    \u003ch3\u003eWhat makes PFLS-NBL-S120M40A safe for professional high-current applications?\u003c\/h3\u003e\n    \u003cp\u003ePFLS-NBL-S120M40A is TUV Rheinland certified (ID 1111303479) under Type Approval, Safety, and Regular Production Surveillance categories. It also carries CE marking, RoHS compliance (Restriction of Hazardous Substances), and REACH compliance. The housing material achieves a UL94-V0 flammability rating, which is the highest classification for vertical flame resistance in plastics, meaning the material self-extinguishes within 10 seconds with no flaming drips. The key-release pin mechanism has been certified as part of the TUV evaluation, ensuring that the disconnect feature meets the same safety standards as the connection itself.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"kupo-faq-seo-item\"\u003e\n    \u003ch3\u003eWhat makes PFLS-NBL-S120M40A versatile for sports venue and stadium event applications?\u003c\/h3\u003e\n    \u003cp\u003ePowerFit connectors are designed to be compatible with major brands of single-pole power connector. The dual 400A\/660A rating handles the largest venue power feeds, 13 color-coded variants support complex multi-circuit distribution plans, and CE marking plus TUV certification satisfy international event safety standards. For N circuits using Europe and UK (IEC 60446) color conventions, the blue PFLS-NBL-S120M40A ensures that phase identification remains consistent when mixing PowerFit connectors with existing inventory.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Why was PFLS-NBL-S120M40A designed with a key-release mechanism?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"PFLS-NBL-S120M40A is a KUPO PowerFit 400A line source connector with a blue housing, designated for the Neutral (N) conductor under Europe and UK (IEC 60446) conventions. As the source side of an inline cable connection, it features the innovative patent key-release pin that enables tool-free disconnection. The push-and-twist mechanism secures the connection during operation while allowing rapid uncoupling when needed. It is commonly deployed in sports venue and stadium event applications. Stadium events combine massive power demands with outdoor exposure and strict safety requirements.\"}}, {\"@type\": \"Question\", \"name\": \"How does PFLS-NBL-S120M40A maintain electrical integrity at high current loads?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"PFLS-NBL-S120M40A is rated for 400 amperes continuous with 120mm2 cable, scaling to 660 amperes with 240mm2 cable. The maximum voltage rating is 1000V AC or 1500V DC. The M40 cable gland accommodates cables through two included rubber bushings (inner diameter 23mm and 33mm), and the R120 reduction sleeve (brass with silver plating) handles conductor diameters up to 16.50mm. Set screws require a minimum torque of 10.5 N\/m for reliable termination.\"}}, {\"@type\": \"Question\", \"name\": \"Why is blue used for the neutral connector PFLS-NBL-S120M40A in Europe and UK (IEC 60446) systems?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Blue as Neutral follows IEC 60446, the current harmonized European and UK standard. Under IEC, blue is exclusively reserved for the neutral conductor. This is the most commonly specified neutral color in international installations and is mandatory in EU member states. On the Line Source connector, the blue housing wraps the 170mm body including the area around the key-release mechanism. This means the phase is identifiable even during the push-and-twist connection process, reducing the chance of connecting to the wrong N circuit. Using blue for neutral in IEC jurisdictions is not optional. It is a code requirement that simplifies circuit identification and improves safety across multi-national installations.\"}}, {\"@type\": \"Question\", \"name\": \"What makes PFLS-NBL-S120M40A safe for professional high-current applications?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"PFLS-NBL-S120M40A is TUV Rheinland certified (ID 1111303479) under Type Approval, Safety, and Regular Production Surveillance categories. It also carries CE marking, RoHS compliance (Restriction of Hazardous Substances), and REACH compliance. The housing material achieves a UL94-V0 flammability rating, which is the highest classification for vertical flame resistance in plastics, meaning the material self-extinguishes within 10 seconds with no flaming drips. The key-release pin mechanism has been certified as part of the TUV evaluation, ensuring that the disconnect feature meets the same safety standards as the connection itself.\"}}, {\"@type\": \"Question\", \"name\": \"What makes PFLS-NBL-S120M40A versatile for sports venue and stadium event applications?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"PowerFit connectors are designed to be compatible with major brands of single-pole power connector. The dual 400A\/660A rating handles the largest venue power feeds, 13 color-coded variants support complex multi-circuit distribution plans, and CE marking plus TUV certification satisfy international event safety standards. For N circuits using Europe and UK (IEC 60446) color conventions, the blue PFLS-NBL-S120M40A ensures that phase identification remains consistent when mixing PowerFit connectors with existing inventory.\"}}]}\u003c\/script\u003e\n\u003csection class=\"kupo-download-section\" data-product-id=\"PFLS-NBL-S120M40A\"\u003e\n  \u003ch2\u003eDownload\u003c\/h2\u003e\n  \u003ca class=\"kupo-download-link\" href=\"https:\/\/pub-87314d729f334121b80f91e16c4e7f60.r2.dev\/PFLS-NBL-S120M40A.pdf\" target=\"_blank\" rel=\"noopener\" download\u003e\n    Download PFLS-NBL-S120M40A Spec Sheet (PDF)\n  \u003c\/a\u003e\n\u003c\/section\u003e","brand":"KUPO Power","offers":[{"title":"PowerFit Single Pole (IP67) \/ 400A \/ Inline Connector","offer_id":50208843825372,"sku":"PFLS-NBL-S120M40A","price":0.0,"currency_code":"TWD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/3491\/5548\/files\/PFLS-NBL-S120M40A-b.jpg?v=1777364455","url":"https:\/\/kupopower.com\/products\/pfls-nbl","provider":"KUPO Power","version":"1.0","type":"link"}