The electrical endurance for SF circuit breakers in SM6-24kV range complies to class E2 to IEC 62271-100,
The circuit breaker number of operations can be given as follows for various short circuit current rated values:
The circuit breaker number of operations can be given as follows for various short circuit current rated values:
- 30 breaks at 12.5 kA
- 25 breaks at 25 kA