Mechanical fuse device for protecting switching apparatus

Abstract

A mechanical fuse device for a drive shaft of a switching apparatus is disclosed. The fuse device includes a first connection portion and a second connection portion, and a neck portion connecting the first connection portion and the second connection portion. The drive shaft includes a first part and a second part. The first connection portion is configured to be removably connected to the first part and the second connection portion is configured to be removably connected to the second part thereby connecting the first part and the second part of the drive shaft. The neck portion is a weak link configured to break when being subject to a torque exceeding a predetermined torque value and thereby disconnect the first part and the second part of the drive shaft.

Dependencies are inferred from the claim text.