| 摘要 |
PROBLEM TO BE SOLVED: To provide a switch whose structure can be simplified.SOLUTION: A switch includes a plurality of switch portions 13 each including a fixed electrode 8 and a movable electrode 9 arranged opposite the fixed electrode, and closed to and opened from the fixed electrode 8, the plurality of switch portions 13 being configured to supply and cut off a current flowing to the switch, electrically connected in series, and constituted such that after one switch portion is opened, the other switch portions are opened. |
