PFPS-NBK – PowerFit 400A Panel Source Connector (N), Black
400A single-pole panel source connector. Key-release pin, IP67, 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 with key release mechanism
- Connector type: Single-pole, panel mount, source (male 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. 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 with key release pin ensures reliable connection geometry and convenient tool-free disconnection 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
Australian AS/NZS 3000 and older UK BS 7671 standards use black to identify the neutral conductor in three-phase power systems. The PowerFit 400A Panel Source in black for neutral service provides panel-mounted neutral inlets for power distribution boards, transformer secondary connections, and generator neutral bonding points. The M12 threaded post with brass nut and spring washer ensures secure mechanical attachment to enclosure panels, and the IP67 rating when mated prevents moisture ingress that could compromise neutral integrity in outdoor or marine-adjacent installations.
Key Features
- 400A continuous current capacity at 120mm squared cable; 660A continuous at 240mm squared cable for heavy-duty applications
- Male contact design provides the power source pin for mating with Line Drain or Panel Drain connectors
- Patent key-release pin with POM (Polyoxymethylene) cotter pin enables tool-free disconnection without risking contact damage
- M12 threaded post with brass nut and spring washer for permanent, vibration-resistant panel installation
- Four diameter 5.5mm fixing holes on flange (42mm x 42mm cut-out dimension) ensure secure mechanical mounting
- Plastic end cap over male contact provides IP 2X finger protection against electric shock when unmated
- Push-and-twist locking mechanism maintains positive mechanical engagement across 500 rated mating cycles
- Brass contact with silver plating delivers 0.1 milliohms contact resistance for minimal voltage drop and heat generation
- Non-conductive thermoplastic housing rated UL94-V0 flame retardant for safety-critical installations
- IP67 rating while connected ensures protection against water and dust ingress in outdoor or washdown environments
- 1000V AC / 1500V DC maximum voltage rating with 4500V AC dielectric test voltage for substantial safety margins
- Maximum nut torque: 12 to 14 N/meter for proper fastening without over-tightening
Certifications & Standards
- TUV Rheinland certified (ID 1111303479) - Type Approved, Safety, Regular Production Surveillance
- CE marked for European market compliance
- RoHS (Restriction of Hazardous Substances) compliant
- REACH (Registration, Evaluation, Authorisation and Restriction of Chemicals) compliant
- UL94-V0 flame retardancy classification for the housing material
- IP67 environmental protection rating while mated (dust-tight, resistant to temporary submersion)
- Short circuit capacity: Up to 35.5 kiloamperes
- Insulation resistance: Greater than 5000 megohms at 500V AC
- Working temperature range: 45 to 85 degrees Celsius
Applications
- Three-phase neutral return connections in power distribution boards and transformer panels
- Generator neutral bonding points and neutral-ground connection management systems
- Unbalanced load management panels where neutral current capacity is critical
- Portable power distribution neutral bus inlets for entertainment and event production
- Industrial process power systems requiring dedicated high-capacity neutral connections
- Temporary power infrastructure neutral distribution for construction and mining sites
- UPS output neutral connections and bypass switch neutral routing panels
Compatibility
The PowerFit 400A Panel Source connector is compatible with major brands of single-pole power connector systems. Its M12 threaded post interface and push-and-twist mating mechanism with key-release pin ensure standardized connection geometry across certified suppliers. The male contact mates with PowerFit Line Drain and Panel Drain connectors. Verify mechanical and electrical specifications with your mating connector manufacturer to confirm 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 120/208V 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
PFPS-NBK FAQ
What makes PFPS-NBK the origin point in a PowerFit system?
PFPS-NBK is a KUPO PowerFit 400A panel source connector with a black housing, designated for the Neutral (N) conductor under Australia and UK (Old, pre-2004) conventions. Mounted permanently at generator outputs, main panels, and power supply enclosures, it is the origin point from which power flows outward through the PowerFit system. Despite being panel-mounted, it retains the key-release mechanism for convenient field disconnection. It is commonly deployed in touring theatrical production applications. Touring shows load in and load out of different venues on tight schedules, sometimes daily.
What are the power handling specifications of PFPS-NBK?
PFPS-NBK 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 insulation resistance exceeds 5000 megaohms at 500V AC, and the test voltage rating of 4500V AC provides substantial safety margin. The short circuit rating of up to 35.5 kiloamperes means the connector can withstand fault conditions without catastrophic failure.
What does the black housing on PFPS-NBK indicate about its neutral assignment?
Black as Neutral follows Australian wiring conventions and the legacy UK color code (pre-2004 harmonization). In Australia, the standard wiring set includes black for Neutral alongside red (L1), white (L2), blue (L3), and green (Earth). On the Panel Source, the black housing is visible on the connector face at the power origin point. Color coding at the source end of the distribution chain is especially important because phase assignment errors at the panel propagate through every downstream connection. Confusing neutral-black (Australian) with phase-black (NEC L1 or IEC L2) can create dangerous neutral-to-phase faults. Phase-encoded connectors prevent this.
How is PFPS-NBK certified for use as a power source connector?
PFPS-NBK 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. As the power origin point, the Panel Source undergoes the same TUV safety evaluation as the full PowerFit system, including the key-release mechanism and panel-mount retention.
What makes PFPS-NBK installation straightforward for permanent power sources?
The PFPS-NBK mounts through a 42 x 42mm panel cutout using four 5.5mm fixing holes. The M12 threaded post secures to the panel with the included brass nut and washer at 12 to 14 N/m maximum torque. Despite being a permanent panel-mount connector, PFPS-NBK retains the PowerFit key-release mechanism, allowing field technicians to disconnect mating Line Drain connectors without tools. IP 2X finger protection and a plastic end cap protect the contacts when no mating connector is present. The Panel Source has a 55.3mm flange width and 50.7mm total depth, with a 42.5mm body diameter. It is shallower than the Panel Drain, requiring less clearance behind the panel.
Why choose PFPS-NBK over a traditional panel-mount single-pole connector?
PFPS-NBK offers several meaningful improvements over conventional single-pole power connectors: the patent key-release pin enables tool-free disconnection that traditional locking mechanisms cannot match; IP67 protection when mated provides dust-tight and waterproof sealing that most single-pole connectors lack; the 1000V AC / 1500V DC voltage rating exceeds the typical 600V maximum of traditional alternatives. These features, combined with TUV Rheinland certification and the phase-encoded black housing for N identification, make PowerFit a generation ahead of traditional designs.
Video and Download
PFPS-NBK — Download Spec Sheet (PDF) ↓
