| 摘要 |
The present invention comprises a first switching member (3) used for opening/closing a first contact part (20) of a circuit unit (2) and a second switching member (4) used for opening/closing a second contact part (21) of the circuit unit (2), and can switch the first contact part (20) and the second contact part (21) respectively to a conducting state and a non-conducting state with the opening/closing of a door (61) of an elevator(6). |
