Classicsat, it is a Cutler-Hammer BR panel,it is too bad they all cannot be that neat, on another note I use very few main breaker panels,and the last one was a SQ D Homeline (yuk [Linked Image] ) and the box was reversable for top or bottom feed, this panels MB operates side to side also, so there would be no reason one could not do so.That would be my only criticism of a fine job.