Cutler-Hammer Main Circuit Breaker Load Center, Three Phase, 208Y/120/240 VAC, 150 A, 25 kA Interrupt, 42 Circuits, Type BWH Breaker, 4-Wire Wiring Configuration, 30 Spaces, 1 to 3/0 AWG Wire, NEMA 1, L1 Enclosure Box, 3.88 in L x 14.31 in W x 27 in H