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NQ Panelboards and Arc Fault Breakers

Issue:
What is the maximum number of AFI breakers that can be mounted in a NQ panelboard?

Product Line:
NQ panelboards sold and supported in the USA.

Environment:
Application/product selection. 

Cause:
Total number of AFI/CAFI breaker installed

Resolution:
The maximum is 54. Code limits the % of gutter that can be filled by pigtails. Exceeding 54 per panel exceeds maximum % gutter fill.








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