Connector, Voltage 600VAC, Amps 30, HP 20, Number of Wires 3, Number of Poles 4, Material Copperfree Aluminum, NEMA Rating 3, 3R, 4, 4XFeaturesItem: ConnectorNumber of Poles: 4NEMA Rating: 3, 3R, 4, 4XHP: 20Voltage: 600VACNumber of Wires: 3Standards: UL 1682, UL 1686, UL 50E, C22.2 No. 182.1Material: Copperfree AluminumAmps: 30