Hubbell Wiring Device-Kellems HBL Circuit-Lock, HBL460MIF7W, Pin and Sleeve Mechanical Interlock, 3-Phase Female Grounding Industrial Grade Fused Standard Pressure Screw Terminal Watertight, 480 V AC, 60 A, 28800 W Power, 3 Pole, 4 Wires, 1-1/4 in NPT Hub, NEMA 4X/12K/IP67 Enclosure, Threaded Mounting, Thermoplastic, Red, 10.18 in L x 8.43 in W x 15.36 in H Dimensions