Locking Devices, EdgeConnect™, Isolated Ground Industrial, Flush Receptacle, 30A 125/250V, 3-Pole 4-Wire Grounding, L14-30R, Spring Termination, Orange

In February 1968, Hubbell patented the first isolated ground receptacle. Today - when a clean, noise-free ground is more important than ever—Hubbell is still setting the standard. Hubbell uses insulation barrier construction on many models to isolate the ground contacts from the mounting strap. The grounding terminal is connected directly to the grounding contacts. In this way, ground contacts are separated from the mounting strap and also from the conventional grounding system. The isolated ground circuit is completed by running a dedicated insulated ground wire from the system ground buss to the green grounding screw.

• 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