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Can I get an 8903PB lighting contactor in an NQOD 100A main breaker panelboard, with a backfed main breaker on a factory assembled panel?

No. An 8903PB lighting contactor cannot be connected to a backfed/bus mounted 100A main breaker, such as a QOB. The main breaker must be vertically mounted.

CTA-ID : 2020448
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