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Can you use a QOU120 in place of a QOU120C1H?

Issue:
Is there a replacement for QOU120C1H?
 
Product Line:
QO Miniature Circuit Breaker
 
Environment:
QOU Unit Mount Circuit Breaker
 
Resolution:
The QOU120C1H is a breaker in which part of the molded case is milled away - no direct replacement, not UL listed. System recognized part. Package of 25.
 
The QOU120 is not a replacement.
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