Safety Switch, Amps 100 A, Voltage 240V AC, Circuit Breaker Type QO, Main Circuit Breaker or Main Lug Main Lug, Phase Single, Height 13.39 in, Width 6.14 in, Depth 3 1/2 in, For Use With Circuit breaker QO 2P, Short Circuit Current Rating 10 kA, Enclosure NEMA Rating 1, Color Gray, Enclosure Material Steel, Enclosure Surface Finish Enamel, Indoor, Standards CSA Certified, UL 98, UL Listed