Transcription of Applying Interrupting Rating: Circuit Breakers
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35 Generally, a Circuit breaker should not be applied where the available short- Circuit current at its line side terminals exceeds the Circuit breaker s Interrupting rating. This is a requirement per However, has anallowance for fuses or Circuit Breakers to protect downstream Circuit breakerswhere the available short- Circuit current exceeds the downstream circuitbreaker s Interrupting rating. The term given to this is a series rated combination, series rating, or series combination rating. The application ofseries ratings has many technical limitations and additional NEC requirements that must be met for proper application. Series rated combinations allowed per should be used sparingly.
35 Generally, a circuit breaker should not be applied where the available short-circuit current at its line side terminals exceeds the circuit breaker’s
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