| 摘要 |
To promptly extinguish an arc generated between contacts with a simple and inexpensive structure without negatively influencing the spring property of a movable contact piece. A contact switching mechanism includes a fixed contact piece (51) with a fixed contact (57) and a movable contact piece (52) with a movable contact (62) which faces the fixed contact (57) in a contactable manner. At least either one of the contact pieces is provided with an extension (59b) which extends toward the contact of the remaining contact piece. |
