Square D Qwik-Gard Ground-Fault Circuit Breaker, 120/240 VAC, 20 A, 60 Hz, 10 kA Interrupt, QO Frame, Thermal Magnetic Trip, 2 Pole, 1 Phase, Pressure Plate, 14 - 10 AWG/14 - 8 AWG Wire, Plug-On Mount, 40 deg C, 1.5 in W x 2.91 in D x 4.12 in H