SWITCHING DEVICE Russian patent published in 2013 - IPC H01H9/36 

FIELD: radio engineering, communication.

SUBSTANCE: switching device has at least one input terminal and at least one output terminal (3) for connecting electric conductors, as well as a first switching contact and a second switching contact. The switching contacts in the closed position close the current circuit between the input terminal and the output terminal (3). A circuit breaker is provided for opening the first switching contact and the second switching contact. In the zone of the switching contacts, there is at least one arc-extinguishing chamber (9) which holds a given number of metal plates (10). In order to achieve high reliability and safety during operation even after repeated disconnection, the invention proposes adjoining at least two metal plates (10) through separate areas.

EFFECT: high reliability and safety of operation.

12 cl, 2 dwg