Square D, HGL36125, Hgl Molded Case Circuit Breaker, Series: HGL, 600 V AC/250/500 V DC, 125 A, 50/60 Hz Frequency, 18 to 20 kA Interrupt, H Frame, Thermal Magnetic Trip, 900 to 1700 A Trip, 3 Pole, Line/Load Lug Connection, 14 to 3/0 AWG Wire, 104 deg F, 6.4 in H x 4.12 in W x 4.36 in D Dimensions