| 摘要 |
A bipolar shunting device for multipolar electric lines formed by a box-type contact unit which may be fitted slidingly in substantially U-shaped sections, which support internally two opposite sets of electric insulated wires. A box-type connection unit is provided outside of the sections. In the contact unit three moveable contacts are provided, which are operated by a lever control placed outside of the connection unit. The device includes a two-position selecting unit able to connect itself alternately to either of two of the movable contacts while the third contact is constantly connected to the lever control. |
