Technical FAQs

Ask a Question

How does one interpret date codes for circuit breakers manufactured prior to 1995?

Issue:
Product Features

Product Line:
Circuit Breakers

Environment:
UL489, NFPA 70

Cause:
Determining the age of a circuit breaker is helpful for maintenance and application purposes. Date code formats have changed over the entire long history of the product offer.

Resolution:
Use product data bulletin 0110PD9201R10/92 for date codes prior to 1995. 
Was this helpful?
What can we do to improve the information ?