Question about Siemens 200 Amp Main Breaker 30 Spaces 40 Circuits

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Siemens ite g3040mb1200 bus swap with a g3030mb1200

I have a 3030. Can I swap out the bus in the existing enclosure to a 3040 bus and use tandems for 4 more circuits? Dont want to remove/replace the can. Planning on killing the main, and swapping bus and breakers. (licenced JW)

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  • G Bwire Apr 07, 2012

    Thanks, I went with a new sub panel.


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While this may appear to be doable - the fact remains that the interior and enclosure are tested, approved and listed by UL / FM / etc. as an entire assembly. Taking from one and replacing with another results in a combination that was not listed.

If however, the enclosures of the two panels are identical - then I suppose I would consider doing the same thing. I would be sure to change out the panel cover so that the cat number and info matches the bus.

Posted on Apr 04, 2012

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SOURCE: Will a Siemens ITE

yes it will, you need to always make sure that you put the same brand in the panel box, good luck

Posted on Sep 18, 2011

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