PFPD-NW – PowerFit 400A Panel Drain Connector (N), White
400A single-pole panel drain connector. IP67, push-and-twist lock, M12 threaded post, TÜV certified.
- Amperage rating: 400A maximum
- Voltage rating: 1000V AC, 1500V DC maximum
- Contact: M12 threaded post, max 12 – 14 N/meter nut torque
- Connection type: Push-and-twist
- Connector type: Single-pole, panel mount, drain (female contact)
- Housing: High impact-resistant thermoplastic, UL94-V0
- Contact material: Brass (silver-plated)
- Panel mount: 42 × 42mm cut-out, 4 × Ø5.5mm fixing holes
- IP rating: IP67 while mated
- Compatibility: Compatible with major brands of single-pole power connector
- Certifications: TÜV Rheinland (ID 1111303479), CE, RoHS, REACH
Learn more
TÜV Rheinland certified (ID 1111303479): Type Approved, Safety, Regular Production Surveillance. CE marked. RoHS and REACH compliant. Flame Class UL94-V0. IP67 rated while mated. Silicone O-ring seal. Brass nut and washer. Working temperature: 45°C to 85°C. Mating cycle: 500.
Compatible with major brands of single-pole power connector systems. The push-and-twist mating mechanism ensures reliable connection geometry and secure locking across standardized suppliers, enabling integration into existing power distribution infrastructure.
Best suited for:
Electrical enclosures requiring secure panel-mounted termination points, switchgear assemblies and power distribution cabinets, generator and UPS distribution panels, outdoor installations where weather resistance and IP67 protection are required, industrial plant power management, and renewable energy systems requiring robust equipment termination.
Product Description
North American three-phase power systems require neutral conductor connections that deliver 400A continuous current while balancing electrical loads across multiple phase circuits and ensuring voltage stability in industrial and commercial facility distribution infrastructure. The PowerFit 400A Panel Drain connector in white (Neutral NW - NEC) provides the enclosure-mount architecture for neutral distribution in North American manufacturing plants, server farms, utility substations, and switchboards, ensuring color-coded compliance with NEC (National Electrical Code) standards where white identifies the neutral conductor. Operating at 400A continuous with silver-plated brass contacts rated for 500 mating cycles, this connector delivers the patent key-release pin for safe maintenance disconnection and plastic end cap protection, completing the critical return current paths that balance three-phase power distribution systems.
Key Features
- 400A continuous current rating at 120mm² cable; 660A at 240mm² cable for North American three-phase neutral distribution
- Female contact design ensures secure mating with Panel Source neutral connectors in North American multi-phase cabinets
- M12 threaded post with brass nut and spring washer provides reliable fastening for permanent neutral connections
- Four diameter 5.5mm fixing holes (42mm × 42mm cut-out) accommodate North American electrical cabinet standards
- Patent key-release pin enables safe disconnection of neutral return paths during equipment servicing without tools
- Plastic end cap over female contact provides IP 2X finger protection in high-density North American distribution centers
- Push-and-twist locking mechanism prevents vibration-induced separation of critical neutral conductors
- Silver-plated brass contact delivers 0.1 milliohms contact resistance, minimizing neutral point impedance and voltage imbalance
- Non-conductive UL94-V0 thermoplastic housing meets North American electrical safety standards for neutral conductors
- IP67 rating while mated protects neutral connections against moisture and dust ingress in industrial facilities
- Maximum nut torque: 12 to 14 N/meter ensures secure mounting without risk of connector rework
- White color codes as Neutral (N) under North American electrical standards (NEC / NFPA 70)
Certifications & Standards
- TÜV Rheinland certified (ID 1111303479) for North American three-phase system compliance
- CE marking for international distribution to North American facilities
- RoHS and REACH compliant for environmental responsibility in neutral conductor systems
- UL94-V0 flame retardancy rating for North American industrial facility safety
- IP67 rating (dust-tight, temporary submersion protection) suitable for indoor North American multi-phase installations
- 1000V AC / 1500V DC maximum operating voltage; 4500V AC dielectric test
- Short circuit rating: Up to 35.5kA; insulation resistance greater than 5000 megohms at 500V AC
- Working temperature range: 45 to 85 degrees Celsius—stable across North American climate zones
Applications
- North American industrial manufacturing facility three-phase neutral bus distribution systems
- Data center and co-location facility uninterruptible power supply (UPS) neutral return infrastructure
- Utility substation step-down transformer neutral grounding interconnection systems
- Hospital and healthcare facility three-phase electrical distribution neutral conductor systems
- High-tech manufacturing and semiconductor fabrication facility neutral distribution
- Commercial building complex multi-panel switchboard neutral coordination systems
- Generator paralleling switchboard neutral ground interconnection for commercial and industrial backup power
Compatibility
The PowerFit 400A Panel Drain connector is compatible with major brands of single-pole power connector systems used in North American three-phase electrical infrastructure. Its M12 threaded post interface and push-and-twist mating mechanism follow standardized connection geometry across certified suppliers. Verify that your Panel Source neutral connector is rated for continuous neutral current flow and matches your facility three-phase distribution specifications. The white color housing complies with NEC (National Electrical Code) neutral identification standards and facilitates seamless integration with North American electrical systems.
Phase / Wire Color Convention
| Region | L1 | L2 | L3 | N | Ground |
|---|---|---|---|---|---|
| NA 120/208V 1 | Green / G-Y | ||||
| NA 277/480V 2 | Green / G-Y | ||||
| IEC 60446 3 | Green-Yellow | ||||
| AU/NZ Legacy 4 | Green-Yellow | ||||
| China 5 | Green-Yellow |
1 North America 120/208V (NEMA / NEC) 2 North America 277/480V (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
PFPD-NW FAQ
What is PFPD-NW and where is it permanently installed?
PFPD-NW is a KUPO PowerFit 400A panel drain connector with a white housing, designated for the Neutral (N) conductor 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 agricultural and greenhouse operation applications. Agricultural power distribution faces moisture from irrigation, fertilizer chemicals, temperature extremes from greenhouse heating, and often rural locations far from electrical supply houses.
What are the electrical specifications of PFPD-NW for panel installations?
PFPD-NW 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 silver-plated brass contact achieves a contact resistance of just 0.1 milliohms, significantly reducing resistive heating compared to plain brass contacts at sustained high-current loads. This low resistance is particularly important for N circuits carrying continuous neutral current.
How does the white color coding on PFPD-NW prevent neutral-phase confusion?
White identifies the Neutral conductor under North American NEC conventions. White is universally recognized across the USA and Canada as neutral, and using any other color for neutral in NEC-governed installations typically requires special marking or approval. On the Panel Drain, the white 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. A dedicated white PowerFit connector for the neutral return path eliminates guesswork in three-phase-plus-neutral distribution systems.
What certifications make PFPD-NW suitable for permanent installation?
PFPD-NW 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-NW designed to mount in?
PowerFit connectors are designed to be compatible with major brands of single-pole power connector. The silicone O-ring seals against irrigation moisture, the thermoplastic housing resists agricultural chemical exposure, and the push-and-twist mechanism does not require specialized tools that might not be available in remote locations. For N circuits using North America (NEC) color conventions, the white PFPD-NW ensures that phase identification remains consistent when mixing PowerFit connectors with existing inventory.
How is PFPD-NW installed in a power distribution enclosure?
Installing PFPD-NW requires a 42 x 42mm cutout in the enclosure panel. The connector mounts through four 5.5mm 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 55.0mm flange width and 72.2mm total depth, with a 37.0mm body diameter. The flange provides a generous mounting surface for secure enclosure attachment.
Video and Download
PFPD-NW — Download Spec Sheet (PDF) ↓
