Siemens MC3042B1400SC Meter-Load Center Combination, 30 Space, 42 Circuit, 400-Amp, Surface Mount Suitable Only For Use As Service Equipment For Overhead/Underground Service Copper buss bar for excellent conductivity; Uses HD type hubs UL Listed and ANSI safety requirements; Single-phase, 400 Amp, 240-Volt maximum Gutter definers allow conductors to loop down into pull-section area