Siemens Aktiengesellschaft

Johannes-Gerh Banghard

Werner Hartmann

Roman Renz

Michael Hahn

Detlev Schmidt

Erhard Deylitz

Stefan Losch

Klemens Fieberg

Harald Kurzmann

Kathrina Marek

Klaus Oberndoerfer

Joerg Kusserow

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

In a vacuum interrupter for circuit breakers, the aim is to reduce the contact pressure force. The contacts of the vacuum interrupter are configured for this purpose such that there is arranged inside an outer contact region, serving the purpose of arc quenching, an inner contact region which includes a plurality of resilient contact tongues arranged next to one another on a divided circle.

Contact arrangement for a vacuum interrupter

Growing community of inventors

Friedrichsthal, Germany

Johannes-Gerh Banghard