| 摘要 |
<p>To provide a switching device which is easy in assembling work, highly accurately assembled and has no variation in operation characteristics. A plurality of pairs of a movable contact point 22a and a fixed contact point 21a, which are opposite so that they can be contacted with and separated from each other, are provided in parallel and connected in series so that an electrical current flows in the same direction between the movable contact point 22a and the fixed contact point 21a, which are simultaneously closed. Permanent magnets 86, 87 are disposed on lateral sides of the movable contact point 22a and the fixed contact point 21a so that a magnetic field, which extends an arc generated between the contact points in either an upward or downward direction, is formed.</p> |
