Hubbell Wiring Device-Kellems Plug,277VAC,20A,L7-20P,2P,3W,1PH, Black, White (HBL2331);

Locking Devices, TwistLock, Industrial, Male Plug, 20A 277V AC, 2-Pole3-Wire Grounding, L7-20P, Screw Terminal, Black and White.