| 摘要 |
The invention relates to a switching apparatus provided with at least one power pole comprising a contact bridge (11) cooperating with fixed contacts (13, 14) and actuable either by the movable parts (42) of an electro-magnet (4) or by a lock mechanism (5), and characterized in that the contact bridge (11) is rotatingly mounted and that the movable parts of the electromagnet actuate said contact bridge through a motion change mechanism (2). |
