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Thread: GFE required?

  1. #1
    Join Date
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    GFE required?

    A cabinet I am designing has a 2500A main CB.

    The vender of the CB has quoted what appears to be a GFE sensor and trip device.

    I don't see any requirement in the code to have a GFE except on the feeder coming into the cabinet. Is there some benefit to putting one on the main CB for this control panel as well?
    Bob

  2. #2
    Join Date
    Feb 2003
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    The load side of the feeder breaker feeds the line side of the panel disconnect? If so that would seem to be a waste of money to have them both GFP. If there are loads inbetween, then it might make sense for selective coordination.
    Don, Illinois
    The code only applies to T&M work....it does not apply to contract work.

  3. #3
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    Many product selectors automatically add GFP to any device >1000A when the system is 480Y/277. You have to manually deselect the option.
    Just because you can, doesn't mean you should.

  4. #4
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    Quote Originally Posted by jim dungar View Post
    Many product selectors automatically add GFP to any device >1000A when the system is 480Y/277. You have to manually deselect the option.
    That makes sense. That reminds me I need to find out from the end user just what kind of power we have there. It may not be grounded at all.

    Quote Originally Posted by don_resqcapt19 View Post
    The load side of the feeder breaker feeds the line side of the panel disconnect? If so that would seem to be a waste of money to have them both GFP. If there are loads inbetween, then it might make sense for selective coordination.
    As far as I know there are none.
    Bob

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