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What is the Short Circuit Current Rating(or SCCR) of the Heavy Duty Safety Switches?

Issue:
Product Features

Product Line:
Heavy Duty Safety Switches

Environment:
Application

Cause:
Voltage system Short Circuit Current Rating(SCCR)

Resolution:
The Short Circuit Current Rating(or SCCR) for the Heavy Duty safety switches is dependent upon the type of fuse used either inside the switch(fusible) OR protecting the switch upstream(non-fusible). Using Class H or K fuses, the SCCR is 10,000 AIC MAX. Using Class R, J, T or L fuses, the SCCR is 200,000 AIC MAX.

NOTE: there are some limited SCCRs for use with circuit breakers being used in conjunction with Non-Fusible switches. See current digest page 3-6, table 3.13 OR the wiring diagram of the switch for the ratings.


CTA-ID : 126
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