What is the ambient operating temperature range for the QO and Homeline load centers?

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Issue:
Ambient operating temperature

Product Line:
QO and Homeline Load centers

Environment:
Temperature ratings

Cause:
Application

Resolution:
The normal ambient operating temperature range is -5 degree C (+23 degree F) to +40 degree C (+104 degree F), per NEMA Standards Publication PB-1, ``Panelboards``.