Abstract: A switch, includes electrical contacts separated by a contact gap, a tubular guide disposed around at least one of the electrical contacts axially movable between an open position retracted from the contact gap and a closed position bridging the contact gap, a blast cylinder disposed radially outward of the tubular guide and defining a compression volume therebetween, the blast cylinder axially movable in coordination with the tubular guide between the open position and the closed position, an isolating ring coupled to a tubular guide end, and a blast cylinder bottom ring coupled to a blast cylinder end, the blast cylinder bottom ring and the isolating ring configured to engage each other to form a gas seal to prevent a gas from exiting the contact gap into the compression volume when the blast cylinder and the tubular guide are moved to the closed position.

Abstract: A circuit breaker arrangement has a switch route. An exhaust channel leads from a contact gap for removing switching gas that arises in the contact gap. A coolant blow-in opening opens into the exhaust channel. The coolant blow-in opening is associated with a compression device.

Abstract: A switching resistor for an electric switching device having an electrically conductive resistive material. The resistive material is a resistive material on a synthetic material basis.

Abstract: A gas-tight enclosure casing surrounds an enclosure casing interior space. A sight glass is situated on the enclosure casing and enables an area located inside the enclosure casing to be monitored. The sight glass is provided in the form of a lens system. An area to be monitored is focused upon a sensor array of an optical sensor via the lens system.

Abstract: A drive configuration includes a common drive device and driver elements. The driver elements interact with drive elements in order to transmit a drive movement generated by the drive device to movable contact pieces of switching poles or switchgears of an electric switching device. At least one of the switching poles or switchgears has a first driver element and a second driver element, in which the first driver element serves for the generation of a switching-on movement, and the second driver element serves for the generation of a switching-off movement.

Abstract: An electrical insulator preferably for medium and high voltages surrounds an interior space. Electrically active elements can be introduced into the interior space of the electrical insulator. In order to reduce the heat transfer between the interior space and the environment of the electrical insulator, the insulator contains thermally insulating areas.