HUBBELL IG2420ST

Locking Devices, Twist-Lock® Edge, Isolated Ground Industrial, Flush Receptacle, 20A 3-Phase Delta 250VAC, L15-20R, Spring Termination, Orange. Insulation barrier construction isolates ground contact from mounting strap. Spring termination greatly reduces the possibility of loosening the terminal connection with vibration and strand relaxation over time. High-impact, abuse-resistant nylon face. All-brass mounting and grounding system provides a lower resistance ground path and greater resistance to corrosion than steel mounting systems.