Square D by Schneider Electric HOM30M100C Homeline 100-Amp 30-Space 30-Circuit Indoor Main Breaker Load Center with Cover and Factory-Installed Ground Bar Includes a combination flush/surface indoor cover Accommodates plug-on secondary surge arrestor (sold separately) Overhead/underground feed simply by rotating the device before installing Single phase Rated 120/240 VAC and 22,000 AIR short circuit current rating