Flush Mount Receptacle, 50 Amps, 1550R NEMA Configuration, Number of Poles 3, Number of Wires 4, Voltage 250VAC 3 Phase, Phase 3, HP 71/2, Color Black, Duty Heavy, Grade Specification, Material of Construction Thermoplastic Polyester, Wiring Method Back and Side, IP Rating 20, Standards UL/CSA Also known as -HUBBELL WIRING DEVICEKELLEMS HBL8450A Single Receptacle, 50 A, 250V, 3 Phase-Hubbell HBL8450A Insulgrip Straight Blade Single Receptacle 3-Pole 4-Wire
