Leviton CS6364C 50 Amp, 125/250 Volt AC, Black & White Locking Connector, Industrial Grade, Grounding, California-Style, Black-White Super Tough Nylon Body Resists Damage From Severe Impact, Abrasion and Chemicals Non-NEMA Configuration Available Mating Plugs, Connectors, Receptacles and Inlets Available Deep wire wells make larger diameter cable easier to wire Copper box terminal with hex head set screw allows for high clamping pressure