| 摘要 |
An electric contact device (X1) comprising a first contact having contact parts (C1, C2), a second contact having a contact part (C3) facing the contact part (C1) and a contact part (C4) facing the contact part (C2), and circuitry (Y1) where a branch (YA) including an electric contact (SA) consisting of the contact parts (C1, C3) and exhibiting a relatively low resistance under closed state of the electric contact (SA) and a branch (YB) including an electric contact (SB) consisting of the contact parts (C2, C4) and exhibiting a relatively high resistance under closed state of the electric contact (SB) are arranged in parallel. In the closing operation where the first and second contacts approach each other, the contact parts (C1, C3) abut against each other after the contact parts (C2, C4) abutted against each other. In the opening operation where the first and second contactors recede from each other, the contact parts (C2, C4) recede from each other after the contact parts (C1, C3) receded from each other.
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