What is the formuala to calculate the rating of motor
protection circuit breaker
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Answer Posted / Ravi Pratap Tomar
The rating (kVA) of a motor protection circuit breaker can be calculated based on the full-load current (I_FL) and the service factor (S_F): kVA = I_FL * S_F. The service factor is typically set by the manufacturer depending on the application and environment.
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