Watertight Plug 20 Amps NEMA Configuration L16-20P Number of Poles 3 Number of Wires 4 Voltage 480VAC 3 Phase HP 5 Color Black Industrial Grade Material of Construction Thermoplastic Elastomer (TPE) NEMA Rating 4 4X 12 6 6P IP Rating 65 66 67 Cord Size 0.56 to 0.775 In. Standards UL/CSA