Product Description
Overview
Data center power distribution infrastructure requires enclosure-mounted connectors that establish permanent, high-current connections without mechanical drift or vibration-induced loosening. The PowerFit 400 A Panel Drain connector in black integrates directly into distro panels, power cabinets, and switchgear, providing a secure 400 A continuous interface for single-pole power circuits in mission-critical computing environments. The patent key-release pin mechanism simplifies connector removal during maintenance, while the innovative plastic end cap on contacts prevents accidental finger contact with live electrical surfaces - a critical safety layer for data center technicians working in confined cabinet spaces.
Key Features
- 400 A continuous current capacity at 120 mm² cable; 660 A continuous at 240 mm² cable
- Fesource interface design receives the Panel Source connector pin
- M12 threaded post with brass nut and spring washer for permanent panel installation
- Four diameter 5.5 mm fixing holes on flange (42 mm x 42 mm cut-out dimension) ensure secure mechanical mounting
- Patent key-release pin enables tool-free uncoupling without risking contact damage
- Plastic end cap over drain interface provides IP 2X finger protection against electric shock
- Push-and-twist locking mechanism maintains positive mechanical engagement across 500 mating cycles
- Brass contact with silver plating delivers 0.1 mOhms contact resistance and minimal voltage drop
- Non-conductive thermoplastic housing rated UL94-V0 flame retardant for safety-critical installations
- Maximum nut torque: 12 to 14 N/meter for proper fastening without over-tightening
- Color-coded and mechanically keyed design prevents accidental mating errors in complex panel layouts
- IP67 rating when mated ensures protection against water and dust ingress in industrial environments
Standards
TÜV Rheinland certified (ID 1111303479) for global industrial and data center compliance; CE and RoHS compliant for international distribution; REACH compliant for restricted substance limitation; UL94-V0 flame retardancy classification for high-safety applications; IP67 rating while mated (dust-tight, resistant to temporary submersion); 1000 V AC / 1500 V DC maximum operating voltage; 4500 V AC dielectric test; Short circuit capacity: Up to 35.5 kA; insulation resistance greater than 5000 MOhms at 500 V AC; Working temperature range: 45 to 85 °C. Match standards and compliance requirements to the local electrical code before installation.
Applications
Suitable for data center power distribution units (PDUs) and cabinet distro boxes mounted in server racks, redundant power supply panels for 24/7 uptime-critical computing infrastructure, uninterruptible Power Supply (UPS) enclosure interconnection to facility branch circuits, industrial control panels and manufacturing equipment switchgear, power management systems for renewable energy installations (solar inverter cabinets, battery storage), generator paralleling switchboards and load distribution management systems, and permanent installations where connector serviceability during downtime windows is essential.
Compatibility
The PowerFit 400 A Panel Drain connector is compatible with major brands of single-pole power connector systems. Its M12 threaded post interface and push-and-twist mating mechanism ensure standardized connection geometry across certified suppliers. Verify mechanical and electrical specifications with your Panel Source connector manufacturer to check impedance matching and safe operating parameters. Use the color-coded and mechanically keyed design as a visual safeguard to prevent cross-phase connection errors during installation or reconfiguration.
Phase / Wire Color Convention
| Region | L1 | L2 | L3 | N | Ground |
|---|---|---|---|---|---|
| NA 120/208 V 1 | Green / G-Y | ||||
| NA 277/480 V 2 | Green / G-Y | ||||
| IEC 60446 3 | Green-Yellow | ||||
| AU/NZ Legacy 4 | Green-Yellow | ||||
| China 5 | Green-Yellow |
1 North America 120/208 V (NEMA / NEC) 2 North America 277/480 V (NEMA / NEC) 3 Europe, UK, Australia (current IEC 60446)
4 Australia / New Zealand legacy (pre-IEC) 5 China (GB 50303) G-Y = Green-Yellow (earth/ground)
Frequently Asked Questions
What is PFPD-1BK and where is it permanently installed?
PFPD-1BK is a KUPO PowerFit 400 A panel drain connector with a black housing, identifying Line 1 (L1) under North America (NEC) 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. It is commonly deployed in outdoor music festival applications. When power cables stretch across a rain-soaked festival ground, IP67 protection is not a luxury.
What are the electrical specifications of PFPD-1BK for panel installations?
PFPD-1BK is rated for 400 amperes continuous with 120 mm² cable, scaling to 660 amperes with 240 mm² cable. The maximum voltage rating is 1000 V AC or 1500 V DC. The silver-plated brass contact achieves a contact resistance of just 0.1 mOhms, significantly reducing resistive heating compared to plain brass contacts at sustained high-current loads. This low resistance is particularly important for L1 circuits carrying continuous phase current.
How does the black color coding on PFPD-1BK help identify L1 on the jobsite?
Under North American NEC conventions, black identifies the first line conductor (L1) in a three-phase system. It is the default phase conductor for single-phase 120 V branch circuits and the standard L1 in three-phase configurations alongside red (L2) and blue (L3). Black L1 conductors carry the bulk of single-phase loads in commercial and industrial settings. On the Panel Drain, the black 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 black appears in multiple phase conventions worldwide, the PowerFit phase-encoded SKU system (1BK vs 2BK vs NBK) prevents dangerous cross-convention mix-ups.
What certifications make PFPD-1BK suitable for permanent installation?
PFPD-1BK 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. For permanent installations, the IP 2X 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 equipment and enclosures is PFPD-1BK designed to mount in?
PowerFit connectors are designed to be compatible with major brands of single-pole power connector. The sealed push-and-twist connection keeps moisture out even when cables lie in puddles, and the color-coded housings let crews trace phases across hundreds of meters of temporary cabling. For L1 circuits using North America (NEC) color conventions, the black PFPD-1BK ensures that phase identification remains consistent when mixing PowerFit connectors with existing inventory.
How is PFPD-1BK installed in a power distribution enclosure?
Installing PFPD-1BK requires a 42 x 42 mm cutout in the enclosure panel. The connector mounts through four 5.5 mm fixing holes on its flange, 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. IP 2X 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 55.0 mm flange width and 72.2 mm total depth, with a 37.0 mm body diameter. The flange provides a generous mounting surface for secure enclosure attachment.