Miniature Circuit Breaker, Amps 40 A, AC Voltage Rating 120/240V AC, Circuit Breaker Type Standard, Number of Poles 2, DC Voltage Rating 48V DC, Circuit Breaker Actuator Toggle, Circuit Breaker Mounting Style Plug In, Compatible Panelboard/Load Center Series EQ, Phase Single, Series Q, Max. AIR Rating 10kA at 120V AC, For Use With Siemens EQ Load Centers, Terminal Connection Lug, Frame Size 125A/QP, Length 2 in, Width 3 in, Depth 3 in, Min. Wire Size 8 AWG, Max. Wire Size 4 AWG (Al), 6 AWG (Cu)