| 摘要 |
The disclosure relates to a resetting device on a rotary switch for resetting the latter when the mains voltage falls below a predetermined limiting value, in which an electromagnet connectable to the power supply and equipped with an armature is provided, and this armature releases or blocks, in dependence on the state of excitement of the magnet, a return mechanism which subjects the rotary switch to a resetting from a switching position into a definite starting position. With such a resetting device, the armature (8) of the electromagnet (7) controls at least one displaceable blocking tappet (13), which blocking tappet, in the case of a switch located in a switching position different from its starting position and with the armature (8) pulled up, rests against a projection (19) or engages into a depression of at least one restoring mechanism (16, 16') loaded by a return spring (21,22) and in drive connection with the drive or switch shaft (1). In this way, it is possible, to use such a resetting device also for a switch having several switching positions. |
