291785 - Miller 20A 125V Duplex Receptacle NEMA 5-20R (No Tabs)

Genuine Miller OEM Replacement Receptacle

The Miller 291785 Receptacle is a specialized electrical component designed specifically for use within compatible Miller welding power sources and generators. As a genuine OEM (Original Equipment Manufacturer) part, this receptacle guarantees the precise fit, finish, and electrical specifications required to maintain the safety and functionality of your industrial equipment. Unlike generic hardware store outlets, this unit is manufactured to meet the rigorous demands of welding environments, where vibration, dust, and thermal cycling are common.

Technical Specifications and Configuration

This component is a Straight Blade, Duplex, Grounding receptacle featuring a 2-Pole, 3-Wire (2P3W) configuration. It is rated for 20 Amps at 125 Volts, adhering to the NEMA 5-20R standard. This T-slot design allows it to accept both standard 15-amp (5-15P) and 20-amp (5-20P) plugs, providing versatile auxiliary power connectivity for tools like grinders, drills, and lights. The specific "No Tabs" designation indicates that the connecting tabs (fins) typically found on the side of commercial receptacles—or potentially the mounting ears—are configured specifically for the internal mounting and wiring harness of Miller machines, ensuring correct circuit isolation or physical fitment without modification.

Reliability and Safety

Electrical integrity is paramount in welding operations. Using the correct replacement receptacle ensures that the auxiliary power output of your machine remains grounded and capable of handling the rated load without overheating. The Miller 291785 is built with high-quality materials to resist arcing and wear from frequent plugging and unplugging. When replacing electrical components on high-amperage welding equipment, relying on the manufacturer's specified part number is the best practice to ensure compliance with safety standards and to preserve the machine's warranty and operational lifespan.