| 摘要 |
<p>The device has a quick closing device including a quick closing shaft (7) that releases movable contacts (4) such that stored energy drives quick closing of the contacts after the course of a manual operating handle (6). A signaling device signals a welded state of the contacts of a same phase, and has a hook (17) integrated to levers (13, 15) of the shaft. The levers are co-operated with a cam (14) of the handle and the contacts, respectively, to retain the handle in an intermediate position when the contacts are welded. The contacts are mounted on respective insulating contact supports.</p> |
