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Channel: 225A HOML2225 Subfeed Lug Block in 200A main breaker panel at service entrance feeds 200A breaker subpanel w/ 40' 4/0 AL SER cable in buried conduit - Home Improvement Stack Exchange
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225A HOML2225 Subfeed Lug Block in 200A main breaker panel at service...

From this site, and others, I understand that NEC allows powering a Square D Homeline 200A sub-panel from a HOML2225 225A Subfeed Lug Block installed in a 200A Homeline main service panel, using 4/0 AL...

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Answer by manassehkatz-Moving 2 Codidact for 225A HOML2225 Subfeed Lug Block...

Your service is only 200A. So first of all, it is pointless to send more than 200A to a subpanel because even if everything in the main panel was totally off and never used, you still couldn't use more...

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Answer by nobody for 225A HOML2225 Subfeed Lug Block in 200A main breaker...

You may not use 125A feed-through lugs (and corresponding wire) in a panel fed by 200A service. That would be prone to dangerous overloading. You can do some things sort of like that with conductor...

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