Patent ID: 7283027

Claim:
Switching device comprising: a contact block having a movable part and a fixed part, the fixed part connected to at least one electric terminal and having at least one electric contact zone able to be in contact with a contact zone of the movable part, the fixed part comprising an actuating device for moving the movable part from a closed position to an open position of said electric contact zones, said actuating device comprising at least one electromagnetic coil placed between two bases made of magnetic or magnetizable material and electrically insulated from one another, said at least one electromagnetic coil for magnetizing said bases, at least one first base of said two bases being connected to a first electric terminal, and the movable part comprises at least one magnet inside said at least one electromagnetic coil and comprising at least one electric contact zone between said two bases and electrically connected to a second electric terminal, wherein the actuating device is for moving the magnet from one base to the other between two stable positions respectively corresponding to a distinct electric state of the switching device such that in at least one of the two stable positions, said magnet is in electric contact with said first base connected to said first electric terminal.