| 摘要 |
<p>A safety switch for a safety circuit, the safety switch comprising a moveable magnet moveably located between a fixed contact and a fixed magnet, a movable contact being fixed to the moveable magnet, wherein the safety switch further comprises coils located adjacent to the moveable magnet, the coils being arranged such that when they are energised they push the moveable magnet towards the fixed contact such that the movable contact presses against the fixed contact, and the fixed magnet being arranged such that when the coils are not energised the moveable magnet and the moveable contact are pulled away from the fixed contact.</p> |
