Can residual current circuit breakers be used in parallel?

Mar 19, 2024

Leave a message

Can the residual current circuit breakers be used in parallel when the current level of the circuit is high and there is no corresponding residual current circuit breaker?
Cannot be used in parallel. Because the current flowing through each time cannot be equal, this will generate a current difference, causing the current passing through the zero sequence current transformer to be unbalanced, resulting in the operation of the leakage circuit breaker. If only one of the two residual current circuit breakers operates, all current flows to the other residual current circuit breaker. If this residual current circuit breaker is not equipped with overload protection, it will burn out.

 

Send Inquiry