Product Description
The KUPO K-LOK 400A Female Panel Mount Receptacle (Thread-Stud Type) is engineered for secure, permanent installation in high-current power distribution enclosures, distro boxes, and panel assemblies. Featuring a Santoprene TPV (Thermoplastic Vulcanizate) housing rated to 105 degrees Celsius, brass contacts for superior conductivity, and a robust threaded stud connection with mounting holes for rigid enclosure attachment, this connector delivers the structural integrity and electrical performance required by large-scale entertainment productions and industrial power systems handling up to 400 amperes. Full interoperability with standard CAM-type connectors ensures seamless integration into existing power distribution infrastructure.
Key Features
- Panel-mount design with threaded stud and mounting holes for secure, vibration-resistant enclosure installation
- Santoprene TPV housing rated to 105 degrees Celsius withstands demanding conditions in permanent installations
- Brass contacts deliver reliable, low-resistance electrical connections for sustained high-current loads up to 400A
- Threaded stud connection provides strong, vibration-resistant termination for panel-through wiring accommodating #6 AWG to 4/0 AWG conductors
- Universal CAM-type compatibility integrates seamlessly with existing inline connectors from multiple manufacturers
- cUL Listed ensures compliance with North American safety standards
Certifications & Standards
- cUL Listed - File Number E332947
- UL 1691 - Standard for Safety for Cam-Type, Locking-Type Separable Connectors
- Environment Rating: UL Enclosure Types 3R
- Flame Class: HB / UL94
- RoHS (Restriction of Hazardous Substances) Compliant
Applications
- Concert touring and live event production
- Film, television, and studio power distribution
- Temporary construction site power
- Theme park and entertainment venue installations
- Trade shows and exhibition power systems
- Industrial temporary power connections
- Broadcast and outside broadcast (OB) van power
Compatibility
The K-LOK 400A Female Panel Mount Receptacle intermates with standard CAM-type single-pole connectors from all major manufacturers, enabling seamless integration into existing power distribution systems without requiring a full infrastructure change.
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
What does KL-400SFR do and where is it typically used?
KL-400SFR provides a safe, reliable single-pole female connection point for 400A circuits at up to 600V AC/DC. As a panel mount receptacle with red color coding, it is commonly used in professional entertainment power distribution, temporary construction feeds, and industrial installations.
What are the electrical ratings of KL-400SFR?
KL-400SFR is rated for 400 amperes maximum continuous current at 600V AC/DC maximum. It accepts conductors from #6 to 4/0 AWG (American Wire Gauge), with brass contacts delivering low-resistance connections for sustained high-current loads.
What does the red housing on KL-400SFR signify?
Red marks Phase B (L2) in North American wiring and Phase C (L3) under Chinese GB 50303 standards. It is one of the most visually distinctive colors on a busy job site, helping crews quickly trace the second phase conductor. Color-coded connectors like KL-400SFR allow crews to visually verify correct phase wiring at a glance, which is especially valuable during fast-paced load-ins and load-outs.
What safety standards apply to KL-400SFR?
KL-400SFR meets UL 1691 (Cam-Type, Locking-Type Separable Connectors), is cUL Listed under E332947, rated UL Enclosure Types 3R for weather resistance, carries a HB / UL94 flame class, and complies with RoHS hazardous substance restrictions. These certifications collectively ensure the connector is safe for professional use in entertainment and industrial environments.
Where is KL-400SFR commonly deployed?
You will find KL-400SFR at work in portable power distribution for emergency and disaster-response operations. The red color coding and 400-amp capacity make it particularly well suited for multi-phase power distribution in professional settings.
What housing material is used in KL-400SFR and why does it matter?
KL-400SFR uses a Santoprene TPV (Thermoplastic Vulcanizate) housing rated to 105 degrees Celsius. Santoprene TPV delivers outstanding resistance to heat, chemicals, and UV exposure while maintaining flexibility across a wide temperature range - essential properties for connectors installed in enclosures that may face extreme operating environments.