Siemens SpeedFax™ VL Molded Case Circuit Breaker, Series: SentronĂ‚®, 600 VAC/500 VDC, 250 A, 50/60 Hz, 25 kA Interrupt, FD Frame, Thermal Magnetic Trip, 1100 to 2500 A Trip, 3 Pole, 3 Phase, Bolt-On, 4 AWG to 350 kcmil/6 AWG to 350 kcmil Wire, 40 deg C, 9.5 in L x 4.5 in W x 4 in H