Q-Line Miniature Circuit Breaker, 20 A, Non-Interchangeable Tripping Mechanism, Load Lug Terminal, Bolt-On, 120/240 V ac, #14 to #8 AWG (Copper)/#12 to #8 AWG (Aluminum) Wire Size, 2-63/64 in Overall Depth, 3-9/32 in Overall Height, 1 in Overall Width, 0.31 lb