GE PowerMark Gold™ Main Breaker Load Center, 1-Phase Standard, 120/240 VAC, 200 A, 22 kA Interrupt, 40 Circuits, THQL/THQP Breaker, Plug-In Breaker Mounting, 3-Wire Wiring Configuration, 200 A Bus Rating, 48 Spaces, 1 AWG to 250 kcmil Wire, Plug-In Mount, NEMA 1, Copper Housing, 34.56 in L x 15.36 in W x 3.75 in H