GE Lighting Panel Circuit Breaker, Series: Q-Line, 277 V AC, 20 A, 14 kA Interrupt, TEY Frame, Thermal Magnetic Trip, 1 Pole, 1 ph, Load Lug Connection, 14 to 8 kcmil, 12 to 8 kcmil Wire, Bolted-On Mounting, 40 deg C, 5-1/4 in H x 1 in W x 3-1/16 in D Dimensions