Molded Case Circuit Breaker, 250 A Amps, AC Voltage Rating 600V AC, Max. AIR Rating 42kA at 120/240V AC, For Use With I Line Panelboards, Series LA, High Amp Trip Setting 2,500 A, Low Amp Trip Setting 1,250 A, Circuit Breaker Type Standard, Number of Poles 3, DC Voltage Rating 250V DC, Terminal Connection Lug, Trip Type Thermal Magnetic, Phase Three, Instantaneous Trip Adjustable, Phase Connection ABC, Frame Size 400A/LA, Circuit Breaker Mounting Style I-Line, Height 11 in, Width 6 in