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Can a second subfeed breaker be field installed in an existing NF 400 amp main lugs only (MLO) panelboard?

Issue:
Can a second subfeed breaker be field installed in an existing NF 400 amp main lugs only panelboard?

Product Line:
NF Panelboard

Environment:
Application

Cause:
Clarification

Resolution:
Yes. The mounting hardware used for the original subfeed breaker will accommodate up to two breakers. The cable to feed the second breaker is to be supplied by the installer.


 
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