| 摘要 |
PROBLEM TO BE SOLVED: To enable to recognize movements of a moving iron from the outside, and to easily confirm whether a contact point mechanism is OFF ON. SOLUTION: In the case the contact point mechanism 30 is OFF, the end part 72R of the second moving iron piece 72 is more exposed than that of the end part 72L of the second moving iron piece 72 at the space part J2 for exposure in the right of the base block 90, and further, in the case the contact point mechanism 30 is ON, the contact point mechanism 30 is confirmed whether the contact point mechanism is OFF or ON by the fact that the end part 72L of the second moving iron piece 72 is more exposed than that of the end part 72R of the second moving iron piece 72 at the space part J1 for the exposure in the left of the base block 90.
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