Switching system with switch fuse units has combined switching and blocking device preventing movement into closed switch position unless fuse links for each switch fuse unit are in active position

摘要

The switching system has at least one switch fuse unit (10) with a removable fuse link (20), which is moved between an open position and a closed position, with a combined switching and blocking device (30) having a blocking element (32), with a blocking rod (33) for each switch fuse unit, attached to a switch control lever. The latter can be moved into the closed switch position only when each blocking rod fits into an opening of an interlocking element (35), linked to the movement of the fuse link into the active position, the blocking rod preventing the movement of the switch fuse unit into the open position.