Siemens Aktiengesellschaft

Kathrina Marek

Detlev Schmidt

Erhard Deylitz

Michael Hahn

Werner Hartmann

Roman Renz

Klemens Fieberg

Harald Kurzmann

Michael Kruschke

Klaus-Gunther Berndt

Klaus Oberndoerfer

Joerg Kusserow

Johannes-Gerh Banghard

Johannes Banghard

A protective unit may prevent contact with conductive contacts in a withdrawable rack of a switching device. This may include one displaceable protective plate and lever arrangement for operating the protective plate. The lever arrangement has two levers that are interconnected in an articulated manner, of which a first lever can be operated by way of the switching device and the second lever is coupled to the mobile protective plate. A linking joint of the two levers acts simultaneously as the pivot bearing of the first lever and the first lever can be pivoted out of the displacement path of the switching device into an end position by way of a slide block that runs in a graded manner in the pivoting direction of the first lever.

Protective unit to prevent contact with conductive contacts in a withdrawable space of switching device

A device is for fixing a circuit breaker in an insertion rack. The device includes at least one arresting unit which is connected to the insertion rack and belongs to the power circuit breaker. The arresting unit is connected to a control rod which is movably arranged on the insertion rack in such a way that it is displaceable from a locking position to an unlocking position and vice-versa. The control rod interacts with a system which moves the power circuit breaker in relation to the insertion rack. The device also includes a release device which can be displaced from the locking position of the control rod to the releasing position thereof and vice-versa by way of the power circuit breaker.

Device for fixing a power circuit breaker in an insertion rack

A new vacuum switching chamber is intended for power breakers in the low-voltage range and is distinguished by a compact form with a small physical height and a high switching capacity. Its enclosure includes a plate-like power current connection, a cylindrical wall part which surrounds flat spiral contacts, an annular insulator and a membrane disk with a centrally arranged power current supply bolt.

Vacuum interrupter chamber with ring-shaped insulator

Multi-pole vacuum switch with an insulation assembly surrounding each

Growing community of inventors

Zepernick, Germany

Kathrina Marek