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Can an NF or NQ panel main breaker have Ground Fault Protection?

Issue:
Ground Fault on main breaker in NQ/NF panelboards

Product Line:
Panelboards

Environment:
NQ, NF

Cause:
Internal GFP

Resolution:
No, turn to an I-Line panel.  There is no provision in an NQ or NF panelboard for the required neutral CT or 24Vdc power supply to install.  Additionally, these panels have not been UL tested for use with ground-fault protection on the main breaker.

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