Siemens SpeedFax™ Main Breaker Load Center, Series: PL Series, 120/240 VAC, 100 A, 22 kA Interrupt, 24 Circuits, MBK100A Breaker, 3-Wire Wiring Configuration, 100 A Bus Rating, 16 Spaces, Surface Mount, NEMA 3R, 23 in H x 14-1/2 in W x 4-1/4 in D Enclosure Box, Copper Housing