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What is the largest amperage ``branch`` breaker that can be added to an NQOB panel?

A 100A QOB breaker is the largest ``branch`` breaker that can be ``added `` to an NQOB panelboard. If not already installed, an SK5668 branch connector kit will also be required.
Larger amperage breakers would have to be subfeed type and can only be used if a sub feed space and hardware is available. Sub feed spaces cannot be a added in the field.

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