schiker
Well-Known Member
I understand when you add a sub panel or another load center you don't connect grounds and neutral in the sub panel.
But are there any exceptions like when you do a panel right beside the other panel?
My 200 amp main panel is near full in my mother-n-law apt/garage. I will need to eventually do a sub panel but may end up mounting it side by side to the main panel box.
My house has (2) 200 amp load centers side by side and I have never looked to see if one is a sub panel or if its considered some type of bussbar extension and both bond the neutral and ground and ground together and share the main ground? It does not have a big breaker feeding the 2nd box I think they are wired in parallel from the meter. That might be the key I just thought about it typing this. If they are very close proximity wired in parallel they are considered the main panel but if one feeds the other its a typical sub panel???
Is there any type of exception like that? Or do you always consider only one the main panel and ANY other is considered a sub panel.
But are there any exceptions like when you do a panel right beside the other panel?
My 200 amp main panel is near full in my mother-n-law apt/garage. I will need to eventually do a sub panel but may end up mounting it side by side to the main panel box.
My house has (2) 200 amp load centers side by side and I have never looked to see if one is a sub panel or if its considered some type of bussbar extension and both bond the neutral and ground and ground together and share the main ground? It does not have a big breaker feeding the 2nd box I think they are wired in parallel from the meter. That might be the key I just thought about it typing this. If they are very close proximity wired in parallel they are considered the main panel but if one feeds the other its a typical sub panel???
Is there any type of exception like that? Or do you always consider only one the main panel and ANY other is considered a sub panel.