| 主权项 |
1. A multi-pole switch-fuse arrangement for busbar systems having at least two switch-fuse units (10) for receiving one fuse link (20) each and having a contact device for busbars (90), a housing (80), a switch device for closing and breaking the circuit of all switch-fuse units (10), a switching lever (40) switchable between an on setting and an off setting, and a drive rod (60) switchable between a contact setting and a breaking setting, a spring device (70) between the housing (80) and the drive rod biasing the drive rod toward its breaking position, comprising a lever mechanism (100) connecting the switching lever (40) to the drive rod (60), the lever mechanism (100) including:
a housing transfer lever (120) connected in an articulated manner at its one end to the housing (80), a drive-rod transfer lever (140) connected at one end in an articulated manner to the drive rod (60), and a switching-lever transfer lever (160) connected at one end to the switching lever (40) in an articulated manner, the respectively opposite ends of each of the transfer levers (120, 140, 160) being interconnected in an articulated manner, so that a force is exerted on the drive rod (60) when the switching lever (40) is moved from its off setting into its on setting by means of the lever mechanism (100), whereby the drive rod (60) moves counter to the spring force of the spring device (70) in a longitudinal direction relative to the housing (80) from its breaking setting into its contact setting. |
