sub fed panel capacity

[1bubba1]

I've installed a 200 amp service to a new home. The problem is the owners have a need for so many dedicated circits along with code requirements that I've run out of room in a 30/40 panel. I've fed the house with 3/0 copper. What percentage can I have on the sub fed panel. The amperage is fine, there are just several items that when run need their own circuits.

 

[bphgravity]

Re: sub fed panel capacity

100%

As you stated, you are requiring more space not load capacity. As long as the total loads don't exceed the raiting of the service entrance or the panelboards themselves, you will be compliant.

 

[bennie]

Re: sub fed panel capacity

Run feeders and panels to the load, not the other way around as many do.

Voltage stability, less dimming, flickering, and power quality is greatly improved.

There should be a maximum length of branch circuits, to reduce voltage drop.

 

[tonyi]

Re: sub fed panel capacity

100% of the load could be in subs. I've done places where it made sense to take the service to a panel that just distributed feeders to subs (actually I put a 15A in the feeder distribution panel to run a service light/recepticle)