Will older style (pre-1986) QOB branch breakers fit into the NQOD or NQ Panelboards?
Issue:
Fitting Older QOB branch breakers into the NQOD or NQ Panelboards
Product Line:
Circuit Breakers and Panelboards
Environment:
Applies to QOB Breakers, NQOB, NQOD, and NQ Panelboards
Resolution:
QOB circuit breaker have been manufactured since the 1950's. Sometime around 1986, the QOB circuit breakers were given a new bolt-on connector. This design change did not affect their use in NQOB panels. However, the NQOD and NQ Panelboards will not accept the older design connector that was on the pre-1986 QOB breakers. There is no problem using the new bolt-on connector QOB breakers in NQOD and NQ Panelboards. See the below pictures showing the pre-1986 connector and the post-1986 connector.
QOB pre-1986 connector
QOB post-1986 connector
Fitting Older QOB branch breakers into the NQOD or NQ Panelboards
Product Line:
Circuit Breakers and Panelboards
Environment:
Applies to QOB Breakers, NQOB, NQOD, and NQ Panelboards
Resolution:
QOB circuit breaker have been manufactured since the 1950's. Sometime around 1986, the QOB circuit breakers were given a new bolt-on connector. This design change did not affect their use in NQOB panels. However, the NQOD and NQ Panelboards will not accept the older design connector that was on the pre-1986 QOB breakers. There is no problem using the new bolt-on connector QOB breakers in NQOD and NQ Panelboards. See the below pictures showing the pre-1986 connector and the post-1986 connector.
QOB pre-1986 connector
QOB post-1986 connector
Publicado para: Schneider Electric Mexico
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