Hubbell HBL2810 L21-30 Single Receptacle

Locking Devices, Twist-Lock®, Industrial, Single Flush Receptacle, 30A 3-Phase Wye 120/208V AC, 4-Pole 5-Wire Grounding, NEMA L21-30R, Screw Terminal, Nylon face, Back and side wire, Black.

• 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