Maximum size subpanel
- Thread starter sparky902
- Start date
- Status
websparky
Senior Member
- Location
- Cleveland, Ohio
Re: Maximum size subpanel
Sub-panels are sized based on the calculations of feeder load which is based on the calculations of branch circuit loads.
There is no "one" answer for your question as far as how big can it be.
If you have a 125A main panel with 30 circuits and you need a sub-panel, you would install the size needed based on current load and then room for expansion.
Sub-panels are sized based on the calculations of feeder load which is based on the calculations of branch circuit loads.
There is no "one" answer for your question as far as how big can it be.
If you have a 125A main panel with 30 circuits and you need a sub-panel, you would install the size needed based on current load and then room for expansion.
jxofaltrds
Inspector Mike®
- Location
- Mike P. Columbus Ohio
- Occupation
- ESI, PI, RBO
Re: Maximum size subpanel
Lets say I have a 150amp main panel. Can I add a 100amp sub?
Yes.
Does that mean I can add 100amps of load?
No.
Mike P.
[ August 01, 2003, 10:43 PM: Message edited by: jxofaltrds ]
Lets say I have a 150amp main panel. Can I add a 100amp sub?
Yes.
Does that mean I can add 100amps of load?
No.
Mike P.
[ August 01, 2003, 10:43 PM: Message edited by: jxofaltrds ]
- Status