Square D™ E-FRAME Miniature Circuit Breaker, Type EDB Ground Fault Molded Case, 277/480Y VAC, 30 A, 50/60 Hz Frequency, 18/25 kA Interrupt, E Frame, Shunt/Thermal Magnetic Trip, 875 A Trip, 3 Pole, 3 ph, Lug Connection, 14 to 6 AWG AL, 12 to 6 AWG Cu Wire, Bolt-On Mounting, 40 deg C, 4.05 in L x 3.92 in W x 5.66 in H Dimensions, Thermoset Composite Resin