| 摘要 |
An object of the present invention is to provide a contact switching device that has small hitting sound during operation and is excellent in impact resistance. For this, there is a contact switching device in which a movable iron core (142) provided at one end portion of a movable shaft is attracted to a fixed iron core, based on excitation and degauss of an electromagnet portion, by which the movable shaft reciprocates in a shaft center direction, and a movable contact of a movable contact piece arranged at another end portion of the movable shaft contacts and departs from a fixed contact. Particularly, the movable iron core (142) has a cylindrical outer circumferential portion (142a) and an annular attracting and sticking portion (142b), and a ratio between an inner diameter and an outer diameter of the cylindrical outer circumferential portion (142a) is 77% or less.
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