Miniature Circuit Breaker, Amps 100 A, AC Voltage Rating 120/240V AC, Circuit Breaker Type Main Breaker, Number of Poles 2, DC Voltage Rating Not Rated, Circuit Breaker Actuator Paddle, Circuit Breaker Mounting Style Bolt On, Compatible Panelboard/Load Center Series QO, Phase Single, Series QOM, Max. AIR Rating 22kA at 120/240V AC, For Use With Square D 125 Amp Single Phase Convertible Load Centers (QOM1 Frame Size), Terminal Connection Lug, Frame Size 100A/QO, Length 5.09 in, Width 5 in