Square D by Schneider Electric HOM2040M100PRB Homeline 100 Amp 20-Space 40-Circuit Outdoor Main Breaker Load Center (Plug-on Neutral Ready), Homeline, 100A Main Breaker Installed Load Center Outdoor, Plug On Neutral Combination Cover For Flush Or Surface Mount 20 Space Circuit 40 Single Poles Includes a fully distributed neutral bar, allowing for the installation of Homeline Plug-on Neutral combination arc fault breakers on any space Each pole space accepts full-size, tandem or quad breakers Ground and neutral bars accept up to (3) #10-14 equipment grounds Includes a rainproof outdoor cover Accommodates plug-on secondary surge arrestor (sold separately)