Molded Case Circuit Breaker 400 A Amps AC Voltage Rating 600V AC Max AIR Rating 25kA at 600V AC For Use With I Line Panelboards Series MJ High Amp Trip Setting 4 000 A Low Amp Trip Setting 800 A Circuit Breaker Type Standard Number of Poles 2 DC Voltage Rating Not Rated Terminal Connection Box Lug Trip Type Electronic Phase Single Instantaneous Trip Adjustable Phase Connection AC Frame Size 800A/M Circuit Breaker Mounting Style Panel Mount Height 12.9 in Width 8.3 in