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On a NQOD 225A Main breaker or main lug panel with a QOB3125VH branch breaker , why is the space across from this limited to 20A 1 or 2 pole branch breaker ?

Because of the buss connector amp rating, nothing above 20 amps can be shared across from the QOB3125VH, or QOB3150VH breakers.

CTA-ID : 2033928
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