PCT No. PCT/DE96/00107 Sec. 371 Date Dec. 3, 1997 Sec. 102(e) Date Dec. 3, 1997 PCT Filed Jan. 16, 1996 PCT Pub. No. WO96/23338 PCT Pub. Date Aug. 1, 1996A device for affecting a traveling system of a switching device, which blocks the traveling system to prevent its operation when a door of a switchboard cell is opened. The device includes a blocking lever mounted on the traveling system and a push rod that can be operated by the door. The push rod and has a leg that can be displaced by movement along an inclined face. The blocking lever engages the leg via a contact angle. The blocking lever can be operated in each of the positions of the switching device inside the switchboard cell to block or release the traveling system.
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