Patent ID: 9552945
Date: 2017-01-24
CPC Classifications: H01H

Claim:
1. A direct current switch for arc extinction independent of current direction, the direct current switch comprising: a first rotatory double interrupter switch unit including a selector shaft and at least two current paths, each current path including an interruption surface, each interruption surface including at least two contacts; an arc extinction device associated with one or more of the at least two current paths; and one or more magnetic field generation devices configured to generate a magnetic field at each of the interruption surfaces, each magnetic field generated at a respective interruption surface having field lines that run substantially transversely to the respective interruption surface, wherein, for a predetermined direction of current flow, deflection forces caused by the magnetic field generated at each of the interruption surfaces act to deflect arcs extending in a longitudinal direction of each of the interruption surfaces such that at least one are is deflected towards the arc extinction device and a further are is deflected onto the selector shaft.