Square D, HDL36050, Hda Molded Case Circuit Breaker, Series: HDL, 600 V AC/250 V DC, 50 A, 50/60 Hz Frequency, 25 kA at 240 VAC/18 kA at 480 VAC/14 kA at 600 VAC/20 kA at 250VDC Interrupt, H Frame, Thermal Magnetic Trip, 400 A Hold, 850 A Trip, 3 Pole, Line/Load Lug Connection, 14 to 3/0 AWG Wire, -13 to 158 deg F, 86 mm L x 104 mm W x 163 mm H Dimensions