Maybe you have been confused by what the markings on circuit breakers suggest? Knowing the markings on electric gear is a simple must make sure a safe and dependable installation that is electrical. Circuit breaker marking demands are founded because of the needs based in the NEC as well as the UL 489 product standard. This informative article will talk about the many markings that are common where they may be discovered.
The UL 489 product standard for Molded Case Circuit Breakers specifies the information to be marked in circuit breakers and where it really is become situated, so let’s talk about what information has to be marked in the circuit breaker and also the location for which you will see those markings. Remember the UL® standard specifies requirements that are minimum. Circuit breaker manufacturers may possibly provide extra information or offer information in an even more location that is convenient.
Markings Visible without Eliminating Trims or Covers
UL 489 requires that some markings be noticeable without getting rid of trims or covers. Continue reading →