Square D™ E-FRAME Miniature Circuit Breaker, Type EDB Molded Case Standard, 277 VAC, 20 A, 50/60 Hz, 18 kA Interrupt, E Frame, Thermal/Magnetic Trip, 270 to 875 A Trip, 1 Pole, 1 ph, Lug, 12 to 6 AWG, 14 to 6 AWG Wire, Bolt-On Mount, 40 deg C, 4.05 in L x 0.98 in W x 5.66 in H