100 AMP Main Breaker With Breakers

Value pack,Plug-on neutral main circuit breaker loadcenter,100A,X3,Aluminum,Cover included,NEMA 1,Metallic,10 kAIC,BR,40 circuits,20 spaces,Three-wire,Single-phase,#4-1/0 AWG Cu/Al,Combination,Type BR 1-inch breakers,120/240V