KL-400SFR – K-LOK 400A Female CAM-Type Panel Mount Receptacle, Threaded Stud, Red
400A single-pole female panel mount receptacle in Red. CAM-type compatible, cRUus Listed.
- Amperage rating: 400A maximum
- Voltage rating: 600V AC/DC maximum
- Terminal accommodation: #6 – 4/0 AWG
- Connection type: Threaded stud
- Connector type: Single-pole, panel mount receptacle, female
- Housing material: Santoprene TPV, rated to 105°C
- Contact material: Brass
- Threaded stud: 5/16 inch-18, length 0.75 inches
- Mounting holes: 3 × diameter 13/64 inches
- Compatibility: Intermates with standard CAM-type connectors
- Listings: cRUus Listed (UL/cUL) — File E332947
- Environment rating: UL Enclosure Types 3R
- Flame class: HB / UL94
Learn more
cRUus Listed (UL and cUL), File Number E332947, tested to UL 1691 — Standard for Safety for Cam-Type, Locking-Type Separable Connectors. Environment rated to UL Enclosure Types 3R. Flame Class HB / UL94. RoHS compliant.
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.
Best suited for:
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, and broadcast and outside broadcast (OB) van power
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
- cRUus Listed (UL/CSA) ensures compliance with North American safety standards
Certifications & Standards
- cRUus Listed (UL and cUL) — 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
KL-400SFR FAQ
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 cRUus 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.
Video and Download
KL-400SFR — Download Spec Sheet (PDF) ↓
