Connecting a sub panel in an outbuilding to main service in the house, to a surface mounted 200 amp panel. So far, all the feeds from this main panel enter or exit through the top or bottom punch-out openings, whether in conduit or not. I have a 2" conduit I want to connect, but the only 2" punch-outs are on the side of the box. Is there anything that restricts where you bring in the conduit to the main panel? Thanks, and sorry if this is a really dumb question.