IEC Pin and Sleeve Plug, Number of Poles 3, Number of Wires 4, Amps 20, Color Red, HP 5, Voltage 480VAC, Phase 3, Body Material Zytel 801 Nylon, Features Watertight and Abuse Resistant, Standards UL Listed E146032, UL Listed 1682 and 1686C2, IEC 3091 and 3092, CSA Certified file Nbr: LR280C, C22.2 No. 182.1 Also known as -HUBBELL WIRING DEVICEKELLEMS HBL420P7W Plug, 3 Pole, 4 Wire-Hubbell HBL420P7W HUBW PLUG-3P4W20A3PH480V