When dimensioning the circuit breaker, the increased ambient temperatures in the control cabinet must also be taken into account! Under certain circumstances, this may make it necessary to reduce the charging current specification in order to increase system availability. The nominal current must be determined according to the information on the type plate in coordination with the desired charging power (DIP switch settings for charging current specification) and the supply line. I(DIP switch) ≤ I(protective circuit breaker) ≤ I(supply line) ≤ I(nominated current)