Pin and Sleeve, Mechanical Interlock, IEC, 3P4W, 20A 3PH 480V, Watertight
Reference : HBL420MI7W
Heavy Duty Products, IEC Pin and Sleeve Devices, Industrial Grade, Female, Mechanically Interlocked Receptacle, 20A 3-Phase Delta 480V AC, 3-Pole 4-Wire Grounding, Terminal Screws