Product Description
European IEC 60445 standards assign gray to the L3 (Phase C) conductor in three-phase power systems. The PowerFit 400A Panel Source in gray serves panel builders, OEM (Original Equipment Manufacturer) integrators, and electrical contractors working on European-standard installations that require permanent, high-current single-pole inlets. The connector's 16 kA (1 s) short-time withstand rating and insulation resistance greater than 5000 megohms at 500V AC provide the electrical performance margins required for safety-critical power distribution infrastructure, while the key-release pin simplifies service access during planned outages.
Key Features
- 400A continuous current capacity at 120mm² cable
- Male contact design provides the power source pin for mating with Line Drain or Panel Drain connectors
- 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 a 42mm x 42mm square around a 47.5mm diameter cut-out ensure secure mechanical mounting
- Plastic end cap over male contact provides IP2X 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 environments
- 1000V AC/DC maximum voltage rating with 4500V AC dielectric test voltage for substantial safety margins
- Maximum nut torque: 12 to 14 N·m for proper fastening without over-tightening
- Not for current interruption: connect and disconnect only when the circuit is de-energized
Certifications & Standards
- TÜV Rheinland certified to IEC 61984 (ID 1111322264), covering type approval, safety and 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-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
- Complete three-phase power distribution systems requiring all three phase inlets
- Motor drive panels and variable frequency drive (VFD) enclosures in industrial automation
- Large-scale lighting and sound system power distribution for arena touring
- Welding power supply panels and high-current industrial process equipment
- Marine and shipboard power distribution systems with environmental sealing requirements
- Portable substation panels for utility and emergency power deployment
- Commercial kitchen and HVAC equipment power connection points
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 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
Frequently Asked Questions
What is PFPS-3GY and why is it the starting point of power distribution?
PFPS-3GY is a KUPO PowerFit 400A panel source connector with a gray housing, identifying Line 3 (L3) under Europe and UK (IEC 60445) 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.
How much current can PFPS-3GY supply from a distribution panel?
PFPS-3GY is rated for 400 amperes continuous with 120mm² cable. The maximum voltage rating is 1000V AC or DC. The M12 threaded post termination accepts conductors through a brass nut and washer assembly, tightened to a maximum of 12 to 14 N·m. The four-point flange mount with 5.5mm fixing holes distributes mechanical load across the panel surface.
What does the gray housing on PFPS-3GY represent under Europe and UK (IEC 60445) standards?
Gray identifies Line 3 (L3) under IEC 60445, completing the European three-phase color set of brown (L1), black (L2), gray (L3). Gray L3 is standard across all EU member states, the UK (post-2004), and countries that have adopted IEC harmonized wiring colors. On the Panel Source, the gray 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. In large-scale European venue installations, gray L3 connectors provide visual confirmation that all three phases of the IEC set are present and correctly assigned.
What independent testing has PFPS-3GY undergone?
PFPS-3GY 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. As the power origin point, the Panel Source undergoes the same TÜV safety evaluation as the full PowerFit system, including the key-release mechanism and panel-mount retention.
What panel cutout and mounting specifications does PFPS-3GY require?
The PFPS-3GY mounts through a 47.5mm diameter panel cutout using four 5.5mm fixing holes on a 42 x 42mm square. 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-3GY retains the PowerFit key-release mechanism, allowing field technicians to disconnect mating Line Drain connectors without tools. IP2X 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.
How does PFPS-3GY integrate with existing power infrastructure in theme park and entertainment venue settings?
PowerFit connectors are designed to be compatible with major brands of single-pole power connector. The flame-retardant thermoplastic housing resists UV degradation, TÜV Rheinland certification meets European safety requirements for permanent installations, and the 500-cycle mating life supports seasonal maintenance schedules. For L3 circuits using Europe and UK (IEC 60445) color conventions, the gray PFPS-3GY ensures that phase identification remains consistent when mixing PowerFit connectors with existing inventory.