Generator connection: not code compliant ?


Old 11-04-19, 07:47 PM
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Question Generator connection: not code compliant ?

Hi, all.

Great forum community. I am seeking a little "affirmation"... If I have a main breaker load center sub panel with 4 critical breakers and install a generator inlet circuit / breaker and a generator interlock plate in this sub panel to isolate it from the main panel / main feed when enabling the generator breaker to feed only the sub panel, is this code compliant?

Let me know if I am not clear. I was told by a contractor this proposed set-up was not compliant unless I replaced the sub panel with a Gen Tran switch. Thank you in advance.

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Old 11-04-19, 07:52 PM
Join Date: Mar 2010
Location: USA
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Depends on your city. Some cities do not allow cam and slider interlocks in panels for backfeeding by generators via a side breaker.

Otherwise it is generally okay to put the interlock kit in the subpanel pretending that the subpanel was the main panel.
Old 11-04-19, 08:10 PM
Join Date: Feb 2016
Location: United States, Virginia
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I'd say yes because you are isolating the subpanel from the main panel and only powering the circuits in the subpanel via the generator. Provided your locality allows interlocks.

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