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 does KL-400LMGY do and where is it typically used?
KL-400LMGY provides a safe, reliable single-pole male connection point for 400 A circuits at up to 600 V AC/DC. As a line connector with grey color coding, it is commonly used in entertainment power distribution, temporary construction feeds, and industrial installations.
What are the electrical ratings of KL-400LMGY?
KL-400LMGY is rated for 400 amperes maximum continuous current at 600 V 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 grey housing on KL-400LMGY signify?
Grey represents Phase C (L3) - and in some IEC applications, Neutral - under the international color code. Adding grey to the connector inventory ensures full IEC three-phase coverage alongside brown and black. Color-coded connectors like KL-400LMGY 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-400LMGY?
KL-400LMGY meets UL 1691 ( Cam-Type, Locking-Type Separable Connectors), is UL / UL / cUL 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-400LMGY commonly deployed?
You will find KL-400LMGY at work in studio power distribution in recording, post-production, and live broadcast environments. The grey color coding and 400-amp capacity make it particularly well suited for multi-phase power distribution in professional settings.
What makes KL-400LMGY easy to use during fast-paced setups?
The K-LOK tool-free design means KL-400LMGY can be assembled and disassembled without specialized equipment. The ribbed Santoprene TPV (Thermoplastic Vulcanizate) housing rated to 105 °C provides a secure grip even with work gloves, and the alignment arrow guides correct mating orientation - cutting connection time on busy sets and stages.