Technical FAQs

Ask a Question

Do Schneider circuit breakers conform to NEMA AB-1?

Issue:
Do Square D circuit breakers meet the requirements of NEMA AB-1?

Product Line:
Molded Case Circuit Breakers

Environment:
Electrical Distribution Systems

Cause:
Standards

Resolution:
Yes, Schneider Electric thermal magnetic circuit breakers conform to the requirements of NEMA AB-1.

In 1999, NEMA AB 1 was harmonized with UL 489.  At that time it effectively superceded NEMA AB-1, and NEMA AB-1 is no longer an active standard.
 
Was this helpful?
What can we do to improve the information ?