Product Description
Overview
The KUPO K-LOK 400 A 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 °C, 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 °C withstands demanding site conditions and extreme temperatures
- Brass contacts deliver reliable, low-resistance electrical connections for sustained high-current loads up to 400 A
- 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 / UL / cUL Listed ensures compliance with North American safety standards
Standards
UL / UL / 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. Match standards and compliance requirements to the local electrical code before installation.
Applications
Suitable 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.
Compatibility
The K-LOK 400 A 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 120/208 V 1 | Green / G-Y | ||||
| NA 277/480 V 2 | Green / G-Y | ||||
| IEC 60446 3 | Green-Yellow | ||||
| AU/NZ Legacy 4 | Green-Yellow | ||||
| China 5 | Green-Yellow |
1 North America 120/208 V (NEMA / NEC) 2 North America 277/480 V (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 kind of connector is KL-400LMY?
KL-400LMY is a 400-ampere, 600 V AC/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 600 V AC/DC. The brass contacts and Santoprene TPV (Thermoplastic Vulcanizate) housing rated to 105 °C 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 / UL / cUL Listed under File Number E332947, certified to UL 1691 - the Standard for Safety for Cam-Type, Locking-Type Separable Connectors. It carries a UL Enclosure Types 3R environment rating, HB / UL94 flame classification, and full RoHS (Restriction of Hazardous Substances) compliance.
Can KL-400LMY work with connectors from other brands?
Absolutely. The K-LOK 400 A 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.