Overview
The Arrow Hart 6252 locking plug is a heavy-duty industrial electrical connector designed for 3-phase power distribution. Rated for 20A 250V with NEMA L11-20P configuration, the 3-pole, 3-wire non-grounding design meets stringent industrial specifications for reliability and safety in commercial and manufacturing facilities.
Key Features
- Solid brass blades — fitted and held securely in place for reliable electrical contact
- Dead-front construction — prevents accidental contact with internal parts and terminals
- Industrial-grade nylon shell — durable, long-lasting performance in demanding environments
- Internal conductor isolation — individual wiring chambers prevent flashover, arcing, and stray wire contact
- Visual inspection ports — transparent wire chambers allow verification of proper termination
- Deep-funnelled wire wells — large rectangular chamfered design guides conductors into secure position
Technical Specifications
- Part Number: 6252
- Manufacturer: Arrow Hart (Eaton)
- NEMA Standard: L11-20P
- Voltage Rating: 250V AC
- Current Rating: 20A
- Phase: 3-Phase
- Poles: 3-Pole
- Wires: 3-Wire
- Grounding: Non-Grounding
- Cord Grip Range: 0.385″ – 0.780″
- Wire Gauge: #18–#10 AWG compatible
- Terminal Screws: #10-32 brass, 10–14 in.-lbs. torque
- Material: Nylon body with solid brass terminals and blades
- Grade: Industrial Specification
Typical Applications
The Arrow Hart 6252 is widely used in:
- Industrial machinery and equipment connections
- 3-phase power distribution in manufacturing facilities
- Heavy-duty portable equipment and temporary power installations
- Commercial HVAC and refrigeration systems
- Industrial welding and material handling equipment
- Data center and telecommunication power systems
Compatibility & Replacements
Compatible With
- NEMA L11-20R receptacles and inlets
- Industrial 3-phase power distribution systems rated 250V, 20A
- Portable cords with wire gauge #18–#10 AWG
- Standard industrial electrical infrastructure (mains or generator-powered)
Replaces / Drop-In Replacement For
The Arrow Hart 6252 is the industry standard NEMA L11-20P configuration. For verified cross-reference or interchangeability with other manufacturers’ part numbers, consult your system integrator or contact Arrow Hart technical support. When replacing existing plugs, verify that the receptacle configuration matches NEMA L11-20R specifications.
Works With
- NEMA L11-20 receptacles, inlets, and flanged outlets
- IEC 60309 compliant 3-phase industrial power systems
- Industrial cords and cables within specified gauge and environmental ratings
- Eaton Arrow Hart ecosystem of locking connectors and receptacles


