Square D™ QO™ Qwik-Gard® Miniature Circuit Breaker, Class B Ground Fault, 120 VAC, 20 A, 50/60 Hz, 10 kA Interrupt, Thermal Magnetic Trip, 1 Pole, 1 ph, Pressure Plate, 14 to 10 AWG, 14 to 8 AWG Wire, Bolt-On Mount, 40 deg C, 2.91 in L x 0.75 in W x 4.12 in H