Abstract: A switching device having an ultra-fast actuating mechanism for opening electric contacts, the device having a propulsion coil and a conducting disk. A stationary contact collaborates in a closed position with a movable contact, said contacts being moved to an open position by repulsion of the conducting disk. A biasing device generates a closing force to hold the electrical contacts in the closed position. Latching means, for maintaining the movable contact in the open position, includes a magnetic yoke having an attraction coil providing an attraction force of a magnetic movable armature. The movable contact is supported by a contact-bearing support having drive means collaborating with the magnetic movable armature to cause movement thereof when movement of the movable contact takes place.

Abstract: A switching device with an ultra-fast actuating mechanism for opening electric contacts comprising a propulsion coil and a conducting disk. A stationary contact collaborates in the closed position with a movable contact, said contacts being moved to the open position by repulsion of the conducting disk. A biasing device generates a closing force to hold said electric contacts in the closed position. Latching means of the movable contact in the open position comprise a magnetic yoke having an attraction coil providing an attraction force of a magnetic movable armature. The movable contact is supported by a contact-bearing support comprising drive means designed to collaborate with the magnetic movable armature to cause movement thereof, when movement of the movable contact takes place.