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 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
- UL Listed for the United States (UL 1691)
Certifications & Standards
- UL Listed, UL File Number E332947
- UL evaluated with 4/0 AWG copper conductors
- Not for current interruption: connect and disconnect only when the circuit is de-energized. Not intended for use with motor loads.
- UL 1691, Single Pole Locking-Type Separable Connectors
- Environment Rating: UL Enclosure Type 3R (when mated)
- 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
Frequently Asked Questions
What kind of connector is KL-400LMY?
KL-400LMY is a 400-ampere, 600V AC / 250V DC single-pole male inline cable connector from the KUPO K-LOK series. Finished in yellow, it belongs to the CAM-type connector family widely used across live events, film production, and temporary industrial power systems.
How much current can KL-400LMY safely carry?
KL-400LMY is designed for a maximum continuous load of 400 amperes at up to 600V AC / 250V DC. The brass contacts and Santoprene TPV (Thermoplastic Vulcanizate) housing rated to 105 degrees Celsius work together to maintain safe operating temperatures even under sustained full-load conditions.
How does the yellow color coding on KL-400LMY help on a busy job site?
On a crowded set or event site, identifying conductors quickly is a safety essential. Yellow identifies Phase A (L1) under China's GB 50303 standard and is also used for specialty marking in some North American installations. Its high-visibility color makes it an excellent choice for circuits that need to stand out for safety or identification purposes. The yellow KL-400LMY connector lets technicians trace circuits visually without needing to check labels or test equipment.
What safety certifications does KL-400LMY hold?
KL-400LMY is UL Listed under UL File Number E332947, certified to UL 1691, the standard for single-pole locking-type separable connectors, and rain tested to UL 50E. It carries a UL Enclosure Type 3R (when mated) environment rating, UL94 HB flame classification, and full RoHS (Restriction of Hazardous Substances) compliance.
Can KL-400LMY work with connectors from other brands?
Absolutely. The K-LOK 400A series uses the industry-standard CAM-type interface, so KL-400LMY mates directly with compatible single-pole connectors regardless of manufacturer. This makes it easy to expand or upgrade your connector stock incrementally.