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The Pass & Seymour L630R is a 30A, 250V single locking receptacle in the NEMA L6-30R configuration, built for 2-pole, 3-wire grounded circuits. It is a spec-grade device aimed at workshops, generators, welders, compressors and other 240V equipment that needs a twist-lock connection that will not pull loose. Its one-piece brass contacts and single-piece brass mounting strap set it apart from cheaper outlets that use riveted straps and folded contacts. Owners and electricians treat it as a durable commercial-grade part rather than a budget receptacle.
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Lowest price we've seen: $11.00 on Nov 9 at toolmartinc.com. Tracked across 8 stores since Nov 9.
Electricians and owners describe this as a solid, well-built locking receptacle that holds a plug firmly and handles 30A loads without heat problems. Complaints are mostly about fit and the need for the correct mating plug rather than the device itself.
This is a Pass & Seymour Spec Grade Turnlok locking single receptacle rated 30A and 250V. It uses the NEMA L6-30R configuration, with 2 poles and 3 wires, grounding.
The face and body are impact-resistant nylon, ultrasonically welded together. The contacts are one-piece, high-grade brass, which conducts well and resists heat rise. The mounting strap is a single piece of solid brass or steel, with no rivets that can work loose.
Wiring is by side or external back wire screw pressure plates, and the terminals accept #14 to #10 AWG wire. The NEMA configuration, rating and third-party listing are marked on the face of each unit.