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Sub Panel #85631
07/24/03 10:11 PM
07/24/03 10:11 PM
Sparks30  Offline OP
Joined: Mar 2002
Posts: 125
I have a sub panel and all the circuits are in a damp location. Can I feed the sub with a 2-pole GFCI Breaker.

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Re: Sub Panel #85632
07/25/03 05:54 AM
07/25/03 05:54 AM
Redsy  Offline
Joined: Mar 2001
Posts: 2,056
Bucks County PA
What are the circuits?
Do they all need GFCI protection?
If a ground-fault occurs on one branch circuit, it will take out the whole subpanel.
Probably not a desirable design consideration.

Re: Sub Panel #85633
07/25/03 03:46 PM
07/25/03 03:46 PM
Sparks30  Offline OP
Joined: Mar 2002
Posts: 125
The circuits are in the basement and garage. This would not cause a huge problem for the person. The sub panel is in the basement.I was just wondering about code. Does this break any code I can not find the answer.

[This message has been edited by Sparks30 (edited 07-25-2003).]

Re: Sub Panel #85634
07/28/03 03:52 PM
07/28/03 03:52 PM
rlrct  Offline
Joined: Jul 2003
Posts: 26
South Windsor, CT
From a homeowner's perspective, I can only think of 2 minor reasons to GFI protect the whole subpanel and that's to save a little time or money. I can think of several reasons not to GFI protect a sub.

First, sections 210-8(a)(2,5) have specific exceptions for appliances. The classic example of such an appliance is a freezer. I'd be really unhappy if a receptacle in my garage tripped the GFI breaker and took out a freezer in the basement.

Second, let's say I set up a workshop in either the basement or garage with dedicated circuits for tools/machinery and a separate circuit for lighting. I wouldn't want a GFI trip on a tool to take my lights out.

Third, placing the GFI protection that far "up circuit" from the receptacles could make it more diifficult to troubleshoot nuisance trips. It certainly doesn't seem intuitive to me that an entire panel would be protected. I'd go looking for a hidden GFI feed-through before I thought to check for a GFI breaker feeding the sub (and that's with a GFI breaker for our spa).


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