Main Lugs Load Center 100 Amp"SQUARE D" MAIN LUGS LOAD CENTER 100A Main Lugs Load Center Rainproof 6 Space Circuit 12 Single Poles As Service Entrance Use Ground Bar PK3GTA 1. Single phase, 3 wire 120 240 VAC 12 spaces and higher panels convertible to main breaker Factory installed main lugs Copper bus bar only on 12 circuits and higher Shielded copper bus bar insulates and secures the interior Top or bottom feed can be accessed simply by rotating the load center UL listed