Cutler-Hammer Circuit Breaker, 120 V, 20 A, 1 ph, 1 Pole, 10 kA Interrupt, Quick-Break, Quick-Make Actuator, Internal Common Trip, 12 to 10, 14 to 10 AWG Wire, Bolt-On, Lug Terminal, Dimensions: 3-1/2 in L x 3 in W x 1 in H SPECIFICATIONS Actuator Type : Handle Amperage Rating : 20 A Connection Type : Bolt-On Height : 1 in Interrupt Rating : 10 kA Length : 3-1/2 in Model : QBH Number of Poles : 1 Terminal Material : Silver Tungsten Terminal Type : Lug Trip Type : Thermal Magnetic Voltage Rating : 120 VAC Width : 3 in Wire Size : 12 to 10 AWG Aluminum, 14 to 10 AWG Copper