Patent ID: 6864443

Claim:
A multipole fused switch arrangement for busbar systems having at least two fused switch units ( 10 ) which each holds a fuse link ( 20 ), with the fused switch units ( 10 ) having a mounting and contact apparatus ( 11 ) for a busbar ( 90 ), and having a switching apparatus for closing and interrupting the circuit of all the switched fuse units ( 10 ), wherein the fused switch arrangement comprises a combined switching and blocking apparatus ( 30 ), having a switching lever ( 40 ) which can be switched to and fro between a switched-on position and a switched-off position, an operating arrangement ( 60 ) for switching switching links ( 12 ) in the fused switch unit ( 10 ), in which case the operating arrangement ( 60 ) can switch to and fro between a contact position and an interrupted position, in each case one blocking apparatus ( 70 ) for each fused switch unit ( 10 ) for blocking the operating arrangement ( 60 ) in the interrupted position, and a locking apparatus ( 80 ) for locking the fuse links ( 20 ) in an operating position, in which case the locking apparatus ( 80 ) can be switched to and fro between a locked position and an isolating position, with the locking apparatus ( 80 ) being coupled to the switching lever ( 40 ) such that it is in the locked position when the switching lever ( 40 ) is in the switched-on position, and is in the isolating position when the switching lever ( 40 ) is in the switched-off position, with the operating arrangement ( 60 ) being coupled to the switching lever ( 40 ) such that it is in the interrupted position when the switching lever ( 40 ) is in the switched-off position, and with a blocking apparatus ( 70 ) blocking the operating arrangement ( 60 ) in the interrupted position when one of the fuse links ( 20 ) of the associated fused switch arrangement is not in its operating position.