Molded Case Circuit Breaker, 400 A Amps, AC Voltage Rating 600V AC, Max. AIR Rating 65kA at 240V AC, For Use With Allen Bradley MCC, Eaton MCC Eaton, Rockwell Automation Enclosed Control, Switchboard, Westinghouse, Series KD, High Amp Trip Setting 400 A, Low Amp Trip Setting 100 A, Circuit Breaker Type Standard, Number of Poles 3, DC Voltage Rating 250V DC, Terminal Connection Line/Load Lug, Trip Type Thermal Magnetic, Phase Three, Instantaneous Trip Fixed, Phase Connection ABC