If the protective devices are oversized then it may be unable to operate under fault condition and hence, the wire or equipment may get damaged due to overheating. MOCP is the maximum permissible rating or size of the circuit breaker that will properly disconnect the circuit or equipment under any anticipated fault condition. MOCP stands for Maximum Over-Current Protection and is defined as the maximum allowable current rating for the over-current protection devices (such as a fuse or circuit breaker) associated with a piece of electrical equipment (e.g. Example: Calculate the MOCP value for 3 – phase, 480 V, 12 KW heater load with motor FLA 5 A. ![]()
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