Square D™ Miniature Circuit Breaker, Type QOU Standard, 120/240 VAC, 25 A, 50/60 Hz Frequency, 10 kA at 120/240 VAC, 5 kA at 48 VDC Interrupt, Thermal/Magnetic Trip, 1 Pole, Line/Load Lug Connection, 14 to 2 AWG Al/Cu Wire, DIN Rail/Surface Mounting, 14 to 140 deg F, 0.75 in W x 2.63 in D x 4.05 in H Dimensions