Product Description
IEC 60445 designates blue as the neutral conductor color across European, Asian, and many international electrical standards. The PowerFit 400A Panel Source in blue for neutral service provides a high-current neutral return path for three-phase power distribution systems, rated for 400A continuous with 120mm² cable. The key-release pin mechanism ensures the neutral connection remains mechanically secure during operation but can be released tool-free for maintenance. The non-conductive thermoplastic housing with UL94-V0 flame retardancy protects against fire propagation in panel enclosures.
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
- 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 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
Where is PFPS-NBL typically installed and what does it feed?
PFPS-NBL is a KUPO PowerFit 400A panel source connector with a blue housing, designated for the Neutral (N) conductor 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-NBL supply from a distribution panel?
PFPS-NBL 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 blue housing on PFPS-NBL indicate about its neutral assignment?
Blue as Neutral follows IEC 60445, the current harmonized European and UK standard. Under IEC, blue is exclusively reserved for the neutral conductor. This is the most commonly specified neutral color in international installations and is mandatory in EU member states. On the Panel Source, the blue 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. Using blue for neutral in IEC jurisdictions is not optional. It is a code requirement that simplifies circuit identification and improves safety across multi-national installations.
What independent testing has PFPS-NBL undergone?
PFPS-NBL 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.
How does PFPS-NBL integrate with existing power infrastructure in sports venue and stadium event settings?
PowerFit connectors are designed to be compatible with major brands of single-pole power connector. The 400A rating handles the largest venue power feeds, 13 color-coded variants support complex multi-circuit distribution plans, and CE marking plus TÜV certification satisfy international event safety standards. For N circuits using Europe and UK (IEC 60445) color conventions, the blue PFPS-NBL ensures that phase identification remains consistent when mixing PowerFit connectors with existing inventory.
What panel cutout and mounting specifications does PFPS-NBL require?
The PFPS-NBL 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-NBL 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.