PFPS-2Y – PowerFit 400A Panel Source Connector (L2), Yellow
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
Legacy UK electrical installations using the older BS 7671 color scheme identify yellow as the L2 phase conductor. The PowerFit 400A Panel Source in yellow supports maintenance and expansion of existing infrastructure in heritage venues, older industrial facilities, and theatrical buildings that have not yet transitioned to the modern IEC color standard. The non-conductive thermoplastic housing achieves UL94-V0 flame retardancy, and the push-and-twist connection mechanism with patent key-release pin maintains reliable electrical contact across the full 500-cycle rated mating life.
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 power distribution panels requiring dedicated L2 phase inlets
- Dimmer rack and lighting control enclosures for theatrical and concert touring systems
- Industrial manufacturing equipment with balanced three-phase power requirements
- Power management systems for mining and heavy industry operations
- UPS (Uninterruptible Power Supply) bypass panels and transfer switch enclosures
- Festival and outdoor event power distribution boards with weather-exposed installations
- Generator paralleling switchboards requiring per-phase connection management
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-2Y FAQ
What makes PFPS-2Y the origin point in a PowerFit system?
PFPS-2Y is a KUPO PowerFit 400A panel source connector with a yellow housing, identifying Line 2 (L2) under 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 data center maintenance applications. During data center expansion or maintenance windows, temporary power must be distributed with absolute reliability.
What electrical capacity does PFPS-2Y provide as a panel source connector?
PFPS-2Y 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 L2 circuits carrying continuous phase current.
What does the yellow housing on PFPS-2Y represent under UK (Old, pre-2004) standards?
Yellow identifies L2 under the legacy UK wiring color code (red/yellow/blue for L1/L2/L3) used before the 2004 harmonization to IEC standards. Legacy UK installations, some Commonwealth countries, and specialty applications still use this color scheme. On the Panel Source, the yellow 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. When maintaining or extending pre-2004 UK installations, matching the existing yellow L2 convention prevents confusion between old and new color systems.
What safety certifications does PFPS-2Y hold for distribution panel use?
PFPS-2Y 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.
How is PFPS-2Y mounted in a distribution panel or generator output?
The PFPS-2Y 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-2Y 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-2Y over a traditional panel-mount single-pole connector?
PFPS-2Y offers several meaningful improvements over conventional single-pole power connectors: 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; silver-plated brass contacts deliver lower contact resistance (0.1 milliohms) than plain brass. These features, combined with TUV Rheinland certification and the phase-encoded yellow housing for L2 identification, make PowerFit a generation ahead of traditional designs.
Video and Download
PFPS-2Y — Download Spec Sheet (PDF) ↓
