| 摘要 |
A limit turn-off switch for an electric motor having contact tracks in the form of circular arcs, at least one contact track (1) being interrupted by an insulating sub-element (3), and sliding arms (12a, 12b) which interact with the contact tracks and whose movement is coupled to the contact tracks with the rotational movement of the motor, and whose bent contact edge (4) is aligned at an angle of 90 DEG > alpha >0 DEG with respect to the centre line (OL) of the associated insulating sub-element (3). <IMAGE>
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