Backfeeding a 200 amp panel with an Outback 3048 [RE-wrenches]

[William Miller]

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Andrew:

I have a "Point of Connection" spread sheet on my web site at:

http://mpandc.com/resources/resources.html

It may be helpful.

William Miller



At 02:41 PM 10/11/2006, you wrote:

>Andrew,
>No, 175A. If it's a 200A panel, you can't put a main breaker larger than
>that in it. 200A is the busbar rating of the panel - but check the label:
>you might have a panel with a 200A main breaker and a higher busbar rating -
>then you're OK.
>
>Check out NEC 690.64b(2). It's the sum of all sources that can't exceed 120%
>of the busbar rating of the panel. In your case, 120% of 200A is 240A. With
>a 200A main breaker, you can also have a 40A inverter feed. If you put in a
>60A, that would be 130%. Put in a 175A main breaker, and 175 + 60 = 235A,
>which is within 120%.
>
>Allan


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