KL-400SMR – K-LOK 400A Male CAM-Type Panel Mount Receptacle, Threaded Stud, Red
400A single-pole male 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, male
- 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 Male 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 Male 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-400SMR FAQ
What is KL-400SMR and what is it designed for?
KL-400SMR is a KUPO K-LOK 400A single-pole male panel mount receptacle (Thread-Stud Type) with a red housing, rated for 600V AC/DC maximum. It is engineered for heavy-duty temporary power distribution in entertainment, industrial, and event production settings. The red color coding aids rapid phase identification on the job site.
What wire sizes does KL-400SMR accept?
KL-400SMR accommodates conductors ranging from #6 to 4/0 AWG. The brass contact assembly ensures reliable electrical performance across this full conductor range, supporting up to 400A at 600V AC/DC.
Which electrical phase does the red color represent on KL-400SMR?
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. Having a dedicated red connector in your inventory means phase assignments are physically enforced, minimizing the chance of cross-phase connection errors.
How does KL-400SMR protect against electrical hazards?
KL-400SMR incorporates multiple safety features: the Santoprene TPV (Thermoplastic Vulcanizate) housing rated to 105 degrees Celsius resists heat and impact, brass contacts minimize resistive heating, and the design meets UL 1691 safety requirements under cRUus listing E332947. The UL Enclosure Types 3R rating also provides protection in wet or outdoor conditions.
Is KL-400SMR compatible with other CAM-type connectors?
Yes. KL-400SMR follows the universal CAM-type single-pole connector standard and intermates with CAM-type connectors from all major manufacturers. This cross-brand compatibility means you can integrate K-LOK connectors into existing power distribution systems without replacing your entire inventory.
What housing material is used in KL-400SMR and why does it matter?
KL-400SMR 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-400SMR — Download Spec Sheet (PDF) ↓
