Molded Case Circuit Breaker 400 A Amps AC Voltage Rating 600V AC Max AIR Rating 42kA at 240V AC For Use With NEMA Motor Starters Series LAL High Amp Trip Setting 3 500 A Low Amp Trip Setting 1 750 A Circuit Breaker Type Motor Circuit Protector 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 Free Standing Height 11 in