Product Description
Protective earth (PE) connections are the most safety-critical conductors in any power distribution system, requiring absolute reliability under fault conditions. The PowerFit 400A Panel Source in green provides a dedicated earth bonding inlet for equipment enclosures, generator frames, and portable power distribution systems. The 400A continuous rating ensures the earth path can safely carry prospective fault currents, while the silver-plated brass contact and push-and-twist mechanical lock prevent the earth connection from being inadvertently broken. The green housing is universally recognized across all international electrical standards as the protective earth conductor identification color.
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
- Equipment grounding bus bars and protective earth bonding points in power distribution panels
- Generator frame grounding and portable power system earth connections
- Safety ground inlets for metal-enclosed switchgear and motor control centers
- Temporary power system grounding for construction sites and event installations
- Lightning protection and surge grounding panel connections
- Industrial facility equipment grounding conductors for personnel safety compliance
- Redundant earth bonding paths for critical infrastructure and data center installations
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
How does PFPS-EGN combine panel mounting with disconnect convenience?
PFPS-EGN is a KUPO PowerFit 400A panel source connector with a green housing, designated for the Protective Earth (PE) conductor. 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.
What electrical capacity does PFPS-EGN provide as a panel source connector?
PFPS-EGN is rated for 400 amperes continuous with 120mm² cable. The maximum voltage rating is 1000V AC or 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 PE circuits carrying continuous earth current.
Why is the green earth connector PFPS-EGN critical for safety?
Green identifies the equipment ground in North America and in older UK installations. IEC, current UK, Australian and Chinese GB conventions use green-yellow for protective earth. Some regions specify green/yellow striped, but solid green is universally recognized as earth ground. Ground conductor integrity is the most critical safety element in any power distribution system. On the Panel Source, the green 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. A distinct green connector ensures the safety earth is never confused with a current-carrying phase or neutral conductor. This is non-negotiable for personnel safety and equipment protection.
What safety certifications does PFPS-EGN hold for distribution panel use?
PFPS-EGN 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 equipment and enclosures is PFPS-EGN designed to mount in?
PowerFit connectors are designed to be compatible with major brands of single-pole power connector. IP67 dust-tight and waterproof protection is critical underground, the 16 kA (1 s) short-time withstand rating provides safety margin in high-fault-current mining distribution, and the non-conductive housing eliminates accidental current paths. For PE circuits using Universal (all regions) color conventions, the green PFPS-EGN ensures that phase identification remains consistent when mixing PowerFit connectors with existing inventory.