Square D™ QO™ Miniature Circuit Breaker, Standard, 120/240 VAC, 150 A, 50/60 Hz, 22 kA Interrupt, Thermal/Magnetic Trip, 150 A Trip, 2 Pole, 1 ph, Box Lug, 4 AWG to 300 kcmil Wire, Bolt-On Mount, 104 deg F, 5.07 in W x 3.6 in D x 5.6 in H