This is a single Crouse-Hinds/Arrow Hart duplex receptacle. It is Industrial Specification Grade, NEMA 5-20R, 2-pole, 3-wire, isolated ground, 20A 125V. Isolated ground devices have a grounding terminal that is electronically isolated from the strap to eliminate electrical interference (noise) in grounding networks that can cause problems in modern electronics. Each is individually packaged with instructions. Packaging may differ from photo.
