What is the difference between Isolator and Circuit Breaker?

1 Answer

Answer :

A: Isolator is a off load device which is used for isolating the downstream circuits from upstream circuits for the reason of any maintenance on downstream circuits. it is manually operated and does not contain any solenoid unlike circuit breaker. it should not be operated while it is having load. Its specification is given in rated current. But circuit breaker is onload automatic device used for breaking the circuit in case of abnormal conditions like short circuit, overload etc., it is having three specification 1) rated current 2)  short circuit breaking capacity and 3) Instantaneous tripping current.

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