Circuit Breaker Solution 14 to 866 kVA

The VDE-AR-N 4105 application guideline stipulates that contactors must no longer be used as coupling switches for generation plants over 100 kVA and that circuit-breakers and motor-protective circuit-breakers must be used instead.

It should also be possible to combine a circuit-breaker with a switch-disconnector for the basic disconnection of an installation. It is recommended that the responsible grid operator should be consulted.