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Why is the thermal magnetic circuit breaker rating higher when use recommended line fuses for the Altistart ATS23 as instructed in the catalog?

In order to obtain the corresponding AIC rating the proper co-ordination has to occur. Through testing and observing the trip characteristics, etc. of the devices when the the thermal magnetic circuit breaker is coordinated with Type RK5 or L power fuses as recommended in catalog 8636CT9701, the withstand rating is 65,000 A RMS for all models.

CTA-ID : 7248
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