| 摘要 |
<p>The present invention relates to a switching device (14) which is arranged to switch a load (12) to a direct voltage circuit (13). The switching device (14) comprises a switching member (14a) consisting of at least three contacts (7,8,9), a control member (10) which controls the contacts (7,8,9) of the switching member (14a) and has the positions open Ä0Ü and closed Ä1Ü, and one or more spring members (16a, 16b) which are tensioned by the control member (10) and control the contacts. The switching device is characterized in that the switching member (14a) of the switching device (14) comprises a limiter arrangement which is arranged to limit closing of at least one contact (7) when the control member (10) is turned from the open Ä0Ü position into the closed Ä1Ü position, the limiter arrangement comprising a limiter (1) and a toggle joint (17) connected thereto and a solenoid (4) arranged in the toggle joint, the toggle joint (17) being arranged to be controlled by the solenoid (4), as a result of which the toggle joint (17) turns the limiter (1) so that it releases the contact (7) of the switching member (14a) whose closing has been prevented, allowing the contact to close. <IMAGE></p> |
