| 摘要 |
The device has two switching points with respective fixed and movable contacts, and a switching mechanism for controlling movement sequences of the movable contacts. The mechanism has a coupling unit (1) that is provided for inducing switching condition change of one point based on the switching condition change of the other point. The unit is arranged within the device in a peripheral manner and is formed as a shift-fork. The unit couples two identical switching units and has two switching arms (1.7, 1.8) that are movable relative to each other. |
