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Can a QMB branch switch be backfed as a main switch?
Backfeeding requirement for Main lug Panel to Main Switch panel with backfed Branch switch
No , the QMB switches , fusible , or breaker, cannot be backfed.
o. A QMB circuit breaker unit can be backfed as a main breaker, but a QMB fusible branch switch can`t be backfed.
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