Cutler-Hammer Main Lug Load Center, 3-Phase Standard, 208Y/120/240 VAC, 150 A, 30 Poles, 10 kA Interrupt, 30 Circuits, CH Breaker, 4-Wire Wiring Configuration, 30 Spaces, 4 AWG to 300 kcmil Wire, Flush Mount, NEMA 1, NEMA D Enclosure Box, Metallic Housing, 29.13 in L x 14.31 in W x 3.88 in H