| 摘要 |
No electric arcs should arise in tap-off units, especially in busbar trunking systems, when the contact members are separated. Such tap-off units are provided with a fastening and locking element (3), a blocking portion (4), an axis (2) and a first contact member for electrical connection of the busbar trunking systems in the bus duct and a second contact member which works in such a way that production and separation of a contact for the first contact member can occur without a current. The invention also seeks to provide a fastening and locking device for the tap-off unit which can be produced and assembled as economically as possible. This is achieved by joining the fastening and locking element (3) and the blocking portion (4) to the axis (2) in a single-piece so that a) two means of retention are provided which are connected to the fastening and locking device (1) and arranged like a sandwich around the contact housing (11) of the first contact member, and b) so that the contact housing (11) has side openings into which the fastening and locking device can be inserted (1). |
