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What is the maximum amp rating for QO and QOB branch breakers that can be installed in an NQOD panel ?<br /><br />

The maximum QO breaker is a QO2125 and the maximum QOB breaker is a QOB2150VH or QOB3150VH . ( These QOB*VH breakers require 4 or 6 pole spaces respectively plus the spaces opposite can only be 20A maximum rated breakers due to the amperage rating of the branch connector.)

Larger amperages (sub-feed breakers) are available as factory assembled only.


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