Siemens Molded Case Circuit Breaker, 120 VAC, 20 A, 60 Hz Frequency Rating, 10 kA Interrupt, QP/MP Frame, Thermal Magnetic Trip, 1 Pole, 1 Phase, Plug-In Connection, 14 to 6 AWG Wire, NEMA 1/3R Enclosure, 40 deg C Temperature Rating, 12.8 in L x 3.6 in W x 3.5 in H Dimensions