GE PowerMark Gold™ Main Breaker Load Center, 1-Phase Standard, Series: TM Series, 120/240 VAC, 125 A, 22 kA Interrupt, 12 Circuits, THQL/THQP Breaker, 3-Wire Wiring Configuration, 24 Spaces, 1 to 2/0 AWG Wire, Plug-In Mount, NEMA 3R, NEMA R3A Enclosure Box, 21-1/2 in H x 13 in W x 5 in D