Hubbell Wiring Device - Hubbell HBL7410BG 20 Amp 250 VAC 3-Pole 4-Wire Non-NEMA Black Nylon Single Flush Receptacle

Locking Devices, Twist-Lock®, Industrial, Single Flush Receptacle, 20A 3-Phase 250V AC, 3-Pole 4-Wire Grounding, Non-NEMA, Screw Terminal, Back wired, Black Thermoset. Features: High-impact, abuse-resistant nylon face; Wire restraint recess for both back and side wiring, greatly reduces the possibility of loosening the terminal connection; Face color coding by voltage facilitates locating and mating of proper devices; All-brass mounting and grounding system provides a lower resistance ground path and greater resistance to corrosion than steel mounting systems; Standard