Miniature Circuit Breaker, Amps 20 A, AC Voltage Rating 120/240V AC, Circuit Breaker Type Arc Fault Circuit Interrupter, Number of Poles 1, DC Voltage Rating Not Rated, Circuit Breaker Actuator Paddle, Circuit Breaker Mounting Style Plug In, Compatible Panelboard/Load Center Series QO, Phase Single, Series QO, Max. AIR Rating 10kA at 120/240V AC, For Use With QO Load Centers and NQ Panelboards, Terminal Connection Pressure plate, Frame Size 100A/QO, Length 4.75 in, Width 0.75 in, Depth 2.91 in