Square D™ QO® Main Lug Loadcenter, 1-Phase Fixed, 120/240 VAC, 100 A, 16 Pole, 10 kA Interrupt, 16 Circuits, QO Breaker, Panel Breaker Mounting, 3-Wire Wiring Configuration, 8 Spaces, 8 to 1 AWG Wire, Flush Mounting, NEMA 1 Enclosure, 4 Enclosure Box, Steel Housing Material, 4.88 in W x 3.8 in D x 12.57 in H Dimensions