Sentron™ Molded Case Circuit Breaker, 600 VAC/500 VDC, 300 A, 50/60 Hz, 25 kA Interrupt, LD Frame, Thermal Magnetic Trip, 1250 to 2500 A Trip, 3 Poles, Line/Load Lug, 3/0 AWG to 500 kcmil Cu/4/0 AWG to 500 kcmil Al Wire, 40 deg C, 7 in L x 9 in W x 15 in H