Square D, QO220, Miniature Circuit Breaker, Standard, 120/240 V AC, 20 A, 50/60 Hz Frequency, 10 kA Interrupt, QO/100 A Frame, Thermal Magnetic Trip, 2 Pole, 1 ph, Pressure Plate Connection, 14 to 8 AWG Wire, Plug-On Mounting, 104 deg F, 2.91 in L x 1.5 in W x 3 in H Dimensions