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What does the RB suffix of a QO or HOMELINE load center catalog number indicate?

Product design features

Product Line:
Homeline load centers

Catalog number logic


NEMA 3R QO or HOMELINE load centers with a RB suffix in the catalog number will have a hub opening in the top endwall. It will accept 3/4" through 2-1/2" B type hubs. The hub opening is covered with a closing cap (BCAP). Hubs are ordered separately.

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