Pin and Sleeve Receptacle Interior, Type Receptacle, Constructional Feature Weatherproof, Raintight, Voltage Rating 600 VAC at 50 to 400 Hz, 250 VDC, Current Rating 150 Ampere, Number of Poles 4, Number of Wires 3, Grounding Style 2, Shell, Extra Pole, Material Epoxy Powder Coated Copper-Free Aluminum, Approval UL 1682/1686/50E, CSA C22.2, Temperature Rating -40 to 107 Deg C, Insulating Block Material, Glass Filled Polyester, Application Compressor, Motor Generator Unit, Pump, Shipping Docks, Shipping Ports, Welding