Eaton main circuit breaker, Bus duct connector, 1000A, Copper, NEMA 3R, Underground, Four-wire, Three-phase, 120/208V, (4) #4/0 AWG-500 kcmil, Internal, Right mounting, TO opposite

Eaton's main service modules are part of Gangable Metering, which consists of a main service module used in conjunction with meter stacks to make a custom metering lineup. Gangable metering is used in large condominiums, strip malls or other applications where more than six units are metered.