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Are NY1B panelboard replacement breakers still available?

Issue:
Are NY1B panelboard replacement breakers still available?

Product Line:
Panelboards

Environment:
NY1B panelboards

Cause:
Customer wants to know if he can install FA* breakers in the NY1B panelboard

Resolution:
The 1-pole 15-50A Y1B breakers are obsolete and no longer available. If the panel was supplied with 2 & 3-pole FAL breakers, 15-100A, and the mounting hardware still exists on the panel, they can be replaced. If ML-1,2, and 3 pole breakers were used, new FAL breakers cannot be added as there are no new replacement connectors available
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