Product Description
Three-phase industrial power systems built to North American 277/480V practice need phase identification that crews can read at a glance. The PowerFit 400A Panel Drain connector in yellow (Phase 3 / L3, USA 277/480V) provides the enclosure-mount architecture for tertiary phase distribution in multinational manufacturing complexes, pharmaceutical production facilities, and automotive assembly lines where equipment sourced from Europe, North America, and Asia coexists on the same electrical infrastructure. Rated for 400A continuous current at 120mm² cable, this connector delivers the key-release pin for safe maintenance disconnection and plastic end cap protection, enabling technicians to confidently identify and connect Phase 3 distribution.
Key Features
- 400A continuous current rating at 120mm² cable
- Female contact design ensures secure mating with Panel Source connectors in international manufacturing facilities
- M12 threaded post with brass nut and spring washer provides reliable fastening across temperature and humidity extremes
- Four diameter 5.5mm fixing holes on a 42mm x 42mm square around a 47.5mm diameter cut-out ensure secure mechanical mounting
- Key-release pin enables technicians to safely disconnect de-energized Phase 3 feeds
- Plastic end cap over female contact provides IP2X finger protection in multi-shift industrial production environments
- Push-and-twist locking mechanism prevents vibration-induced separation from heavy machinery operation
- Silver-plated brass contact delivers 0.1 milliohms contact resistance across high-duty-cycle industrial processes
- Non-conductive UL94-V0 thermoplastic housing meets international electrical safety standards
- IP67 rating while mated protects against coolant spray, moisture, and dust in machine tool environments
- Maximum nut torque: 12 to 14 N·m ensures secure mounting across thermal cycling conditions
- Yellow color codes as Phase 3 (L3) in the brown, orange, yellow sequence common in USA 277/480V systems
- Not for current interruption: connect and disconnect only when the circuit is de-energized
Certifications & Standards
- TÜV Rheinland certified to IEC 61984 (ID 1111322264)
- CE marking for European facility distribution
- RoHS and REACH compliant for international environmental responsibility
- UL94-V0 flame retardancy rating for industrial manufacturing safety
- IP67 rating (dust-tight, temporary submersion protection) suitable for machine tool environments
- 1000V AC/DC maximum operating voltage; 4500V AC dielectric test
- Short-time withstand current: 16 kA for 1 s; insulation resistance greater than 5000 megohms at 500V AC
- Working temperature range: -25 to 125 degrees Celsius
Applications
- Multinational manufacturing plant three-phase power distribution with mixed-source equipment
- Pharmaceutical production and clean-room facility tertiary phase interconnection
- Automotive assembly line electrical distribution for robotic welding and machining systems
- Semiconductor fabrication facility process equipment power management
- Heavy industrial plant switchboard and motor control center tertiary phase connections
- International data center backup power systems using multinational three-phase infrastructure
- Food processing and beverage production facility electrical distribution systems
Compatibility
The PowerFit 400A Panel Drain connector is compatible with major brands of single-pole power connector systems used in multinational industrial manufacturing environments. Its M12 threaded post interface and push-and-twist mating mechanism follow standardized connection geometry across certified suppliers worldwide. Verify that your Panel Source connector carries global certifications (TÜV, CE, other international marks) and is rated for your specific installation voltage and amperage. The yellow housing follows the brown, orange, yellow phase sequence commonly used for 277/480V systems; confirm it against the facility wiring drawing.
Phase / Wire Color Convention
Frequently Asked Questions
What kind of installations require PFPD-3Y?
PFPD-3Y is a KUPO PowerFit 400A panel drain connector with a yellow housing, identifying Line 3 (L3) under USA 277/480V conventions. Mounted permanently in enclosures and distribution boxes, it serves as the final destination in the PowerFit electric direction flow, where incoming power from Line Source connectors enters the downstream equipment. The four-point flange mount and M12 threaded post ensure vibration-resistant installation.
What current and voltage ratings make PFPD-3Y suitable for permanent distribution?
PFPD-3Y is rated for 400 amperes continuous with 120mm² cable. The maximum voltage rating is 1000V AC or DC. The insulation resistance exceeds 5000 megaohms at 500V AC, and the test voltage rating of 4500V AC provides substantial safety margin. Its short-time withstand rating is 16 kA for 1 second.
How does the yellow color coding on PFPD-3Y help identify L3 on the jobsite?
Yellow marks L3 in the brown, orange, yellow phase sequence that is common practice for USA 277/480V systems. In that convention the sequence is brown (L1), orange (L2), yellow (L3), with a gray neutral. It is widely used, but the NEC does not mandate phase colors, so always confirm against the project wiring drawing. On the Panel Drain, the yellow color is visible on the connector face that protrudes from the enclosure panel. When multiple PowerFit connectors are mounted side by side in a distribution box, the color-coded faces create a clear visual map of the phase layout for incoming connections. Because yellow means L2 in the old UK sequence and is part of the green-and-yellow earth marking under IEC, clear phase labeling remains essential on international projects.
How does PFPD-3Y meet safety requirements for panel-mounted power distribution?
PFPD-3Y is TÜV Rheinland certified to IEC 61984 (ID 1111322264) under Type Approval, Safety, and Regular Production Surveillance categories. It also holds CB and UKCA certificates, and carries CE marking, RoHS compliance (Restriction of Hazardous Substances), and REACH compliance. The housing material achieves a UL94-V0 flammability rating, which is the top rating in the UL94 vertical burn (V) series, meaning the material self-extinguishes within 10 seconds with no flaming drips. For permanent installations, the IP2X finger protection prevents accidental contact with live parts when the connector face is exposed, and the four-point flange mount exceeds mechanical retention requirements.
What are the mounting requirements for PFPD-3Y in a panel?
Installing PFPD-3Y requires a 47.5mm diameter cutout in the enclosure panel. The connector mounts through four 5.5mm fixing holes on a 42 x 42mm square, distributing clamping force evenly for vibration resistance. The M12 threaded post accepts the brass nut and washer, tightened to a maximum of 12 to 14 N·m. IP2X finger protection is built into the connector face, preventing accidental contact with live parts when no mating connector is inserted. A plastic end cap protects the contacts during storage and transport. The Panel Drain has a 55.0mm flange width and 72.2mm total depth, with a 37.0mm body diameter. The flange provides a generous mounting surface for secure enclosure attachment.
What sets PFPD-3Y apart from conventional panel-mount power connectors?
PFPD-3Y offers several meaningful improvements over conventional single-pole power connectors: IP2X finger protection prevents accidental contact with live parts when the connector face is exposed; IP67 protection when mated provides dust-tight and waterproof sealing that most single-pole connectors lack; the 1000V AC/DC voltage rating exceeds the typical 600V maximum of traditional alternatives; silver-plated brass contacts deliver lower contact resistance (0.1 milliohms) than plain brass. These features, combined with TÜV Rheinland certification and the phase-encoded yellow housing for L3 identification, make PowerFit a generation ahead of traditional designs.