| 摘要 |
<p>A mechanically operated switching device comprising:
- at least a movable contact and an associated operating mechanism (10) for coupling/separating such movable contact to/from a corresponding fixed contact, wherein the operating mechanism comprises first elastic means which are suitable for providing with their release the energy to separate the movable and fixed contacts;
- at least a shunt release (100) having:
- a member (101) movable between first and second stable positions, wherein the movement from the first stable position to the second stable position causes the release of the first elastic means;
- at least a permanent magnet (109) generating a force holding the movable member in the first stable position, wherein the movable member held in the first stable position compresses second elastic means (108) associated to the movable member;
- at least an electrical winding (120) operatively associated to the movable member and to electronic means that are configured for electrically driving the winding to generate a magnetic force for causing the release of the compressed second elastic means.</p> |
