Abstract: A pole part for a low-voltage, medium-voltage or high voltage devices includes a pole insulating housing having two terminals. At least one measuring device is arranged in the pole insulating housing and arranged in a region of a current transporting part for measuring the voltage and/or current of the current transporting part. The measuring device comprises a signal cable arranged inside the insulating housing between a signal output of the measuring device and an outlet of the insulating housing. The signal cable is formed between the signal output of the measuring device and the outlet of the insulating housing as at least a part of a winding extending around an axial axis of the insulating housing with a rotation angle of at least 90°.

Abstract: A medium voltage circuit breaker includes: vacuum interrupters; and a drive, the drive being provided with a magnetic actuator with a yoke, and an anchor. At least the yoke or the anchor includes a movable part, the movable part of the drive being coupled to a movable part of a switch, and the yoke being provided with an actuation coil. The actuation coil can be driven actively by activation with electrical energy. The yoke is provided with at least one passive coil, which is coupled with the actuation coil only inductively, and with at least one permanent magnet, arranged inside or at the yoke, by which magnetic flux will be further concentrated and/or enhanced towards an airgap to the anchor.

Abstract: A vacuum circuit breaker for the use in high pressure environments, has at least one vacuum interrupter with at least one moving contact and at least one fixed contact inside the vacuum interrupter, and external contact points at the vacuum interrupter. The vacuum circuit breaker can be used under the high-pressure environmental conditions through the use of at least one vacuum interrupter arranged in a pressure tight container, wherein the electrical contacting is realized via a high voltage bushings through the container wall, and the pressure tight container is at least partially filled with insulating oil.