External input protection

The device is tested and approved for circuits up to 20 A. External protection is only required if the supply line has a protection that is higher than this. Also check the local regulations and requirements. Local regulations may apply in some countries.

If an external fuse is required or used, minimum requirements must be taken into account to avoid false tripping of the circuit breaker. A circuit breaker with a minimum value of 10 A with B or C characteristic should be used.