Square D by Schneider Electric SO2040M200S Homeline 200 Amp 20-Space 40-Circuit Indoor Overhead Service CSED, Aluminum bus bar Combination service entrance device features a ring-type meter cover with a single-phase, 4-jaw meter socket Overhead service feed with two 2-1/2 in. maximum type-A size hub provisions in top endwall and a 2-1/2 in. maximum knockout in bottom endwall 200 Amp , 240-volt