Abstract: A vacuum interrupter has a tubular insulating body and a contact system with a moving contact and a fixed contact each connected to power supply bolts, which are passed out of the vacuum interrupter in a vacuum-tight manner. A control electrode is DC-connected to the fixed-contact power supply bolt. A damping shield, which is arranged on the insulating body, is conductive and overlaps the control electrode in an axial direction. The vacuum interrupter has good shielding properties while at the same time improving the dielectric insulation. The control electrode extends out in the form of a toroid in the region of overlap with the damping shield, the damping shield is drawn inwards so as to correspond to the toroid, and the fixed-contact power supply bolt is constricted so as to correspond to the contour of the damping shield and the constriction is fitted such that the drawn-in region of the damping shield extends around the constriction.

Abstract: A vacuum interrupter has a housing, a first contact system, which includes a movable contact piece and a fixed contact piece, and a second contact system, which includes a grounding contact and a grounded mating contact piece. The grounding contact is disposed on a movable contact rod, which is passed out of the housing in a sealing manner, with which vacuum interrupter an interaction of the arc with the grounded mating contact is prevented. The first contact system is held in the interior of the housing using vacuum-tight separating means, which divide the interior of the vacuum interrupter into a first interior having the first contact system and a second interior having the second contact system.