Miniature Circuit Breaker, Amps 20 A, AC Voltage Rating 120V AC, Circuit Breaker Type Combination 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 22kA at 120V AC, For Use With QO Plug-On Neutral Load Centers, Terminal Connection Pressure plate, Frame Size 100A/QO, Length 4.75 in, Width 0.75 in, Depth 2.91 in