Molded Case Circuit Breaker, 1,200 A Amps, AC Voltage Rating 600V AC, Max. AIR Rating 25kA at 600V AC, For Use With Equipment Gear, Series PJ, High Amp Trip Setting 12,000 A, Low Amp Trip Setting 2,400 A, Circuit Breaker Type Standard, Number of Poles 3, DC Voltage Rating Not Rated, Terminal Connection Box Lug, Trip Type Electronic, Phase Three, Instantaneous Trip Adjustable, Phase Connection ABC, Frame Size 1200A/P, Circuit Breaker Mounting Style Lug In/Lug Out, Height 12.9 in, Width 8.3 in