Product Description
The KUPO K-LOK 400A Male Line Connector is engineered for heavy-duty reliability and safety in high-current temporary power distribution. Featuring a Santoprene TPV (Thermoplastic Vulcanizate) housing rated to 105 degrees Celsius, brass contacts for superior conductivity, and a non-conductive POM (Polyoxymethylene) retaining screw that eliminates accidental current paths, this connector delivers the mechanical strength and electrical performance demanded by large-scale entertainment productions and industrial applications handling up to 400 amperes. The modular, tool-free design enables rapid field assembly and disassembly, while full interoperability with standard CAM-type connectors ensures seamless integration into existing power distribution systems.
Key Features
- Non-conductive POM (Polyoxymethylene) retaining screw locks the brass contact firmly in position, eliminating accidental current paths for safer operation
- POM insulation sleeve adds heat resistance and structural strength to the contact assembly
- Ribbed Santoprene TPV housing provides a secure, slip-free grip even when wearing work gloves
- Alignment arrow ensures correct orientation for fast, error-free mating every time
- Santoprene TPV housing rated to 105 degrees Celsius withstands demanding site conditions and extreme temperatures
- Brass contacts deliver reliable, low-resistance electrical connections for sustained high-current loads up to 400A
- Double set screw termination accommodates #6 AWG (American Wire Gauge) to 4/0 AWG conductors with redundant cable retention
- Universal CAM-type compatibility integrates seamlessly with existing power infrastructure 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 Male In-Line Connector 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
Who should use KL-400LMR and why?
Lighting technicians, electricians, and power distribution professionals working with 400A temporary power systems will benefit from KL-400LMR. Its red housing provides instant visual phase identification, while the Santoprene TPV (Thermoplastic Vulcanizate) housing rated to 105 degrees Celsius ensures durability in demanding field conditions.
What voltage and amperage is KL-400LMR rated for?
KL-400LMR carries a maximum rating of 400A and 600V AC/DC. It accepts wire gauges from #6 to 4/0 AWG, making it suitable for the conductor sizes typically used in 400-amp power distribution circuits.
Why choose the red version of the K-LOK 400A male line connector?
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. Choosing KL-400LMR in red ensures your power distribution system follows established color conventions, speeding up setup and reducing wiring errors.
Is KL-400LMR UL listed and what does that mean?
Yes. KL-400LMR is cUL Listed under File Number E332947, meaning it has been independently tested and certified to UL 1691 safety standards by a Nationally Recognized Testing Laboratory. This certification is required for professional power distribution in most North American jurisdictions.
What industries commonly use KL-400LMR?
KL-400LMR is widely used in broadcast operations and outside broadcast (OB) van power distribution. Its 400A / 600V AC/DC rating, combined with CAM-type universal compatibility and red phase coding, makes it a versatile choice across the entertainment, construction, and industrial sectors.
What housing material is used in KL-400LMR and why does it matter?
KL-400LMR uses a Santoprene TPV (Thermoplastic Vulcanizate) housing rated to 105 degrees Celsius. Santoprene TPV combines the flexibility of rubber with the processing advantages of thermoplastic, delivering excellent chemical resistance, UV stability, and durability under repeated mechanical stress - exactly what professional power connectors face on tour and on set.