Abstract: An improved fuse having one or more counter bores in an interior wall of a hollow tube used as the fuse housing. The fuse includes a fusible element disposed within a cavity defined by the interior wall. The fusible element is electrically connected to first and second end caps via solder. The first and second end caps are attached to respective ends of the hollow tube. The one or more counter bores provide more space for the solder to cover the fusible element resulting in a more reliable electrical connection.

Abstract: Modular fuse holders include dual studs with stepped configuration allowing the fuse holders to be universally used with and without bus bars while ensuring proper connection of a fuse.

Abstract: A chip-type micro-fuse including a fusible element, a hollow body made of heat-resistant and insulative materials having at lesat two recesses which are respectively formed on an outer peripheral surface thereof, near the ends thereof and two end caps adapted to respectively cover the ends of the body for electrically connecting the body with external circuits. The end portions of the fusible element are respectively connected at the recesses to the end portions of the body. Further, the recess defined near one end portion of the body is positioned diagonally spaced with respect to another recess defined near the other end of the body. Thus, the fusible element is diagonally stretched between the ends of the body across the inner space of the body. When assembled, the end portions of the fusible element are respectively drawn out from the interior of the fuse without damaging the fusible element and connected at the recesses to the body.

Abstract: A cartridge fuse has a pair of compressed, resilient plugs in opposed ends of a passageway passing through the fuse housing. The compressed material of the plugs engages and holds the fuse filament in slight tension along the length of the passageway and provide unexpectedly superior arc-quenching qualities to prevent explosion of the fuse housing. The ends of the fuse filament can be engaged through the centers of the plugs axially to align the fuse filament in the housing or the fuse filament ends can be engaged between the plugs and the interior of the housing wall to align the fuse filament under tension diagonally in the housing.

Abstract: A bayonet connection between two electrically conductive components, especially for fuse holders, wherein at least one connection component possesses an electrically conductive spring which is electrically conductively connected with the one connection component. This spring, when there is established a connection between the connection components, electrically conductively contacts the second connection component.

Abstract: A cartridge fuse carrier assembly has a housing with a recess for receiving a cartridge fuse. The fuse is held between a contact member co-operable with one end of the fuse at the bottom of the recess and a cap at the opening of the recess, the cap carrying a contact member co-operable with the other end of the fuse. The cap also carries locking means which are moved into the cap-securing position by a transverse movement of the cap relative to the recess, after the cap has been fitted into the opening of the recess. One or more wall surfaces of the recess, and adjacent surface or surfaces of the cap, define a rib and groove coupling arrangement, with the or each rib and co-operating groove being relatively displaced with respect to each other by a distance substantially equal to the length of the transverse movement.

Abstract: A fuse for elevated circuit voltages, e.g. 4-34 kv, has a tubular insulating casing closed on both ends thereof by means of plug terminals. The latter are provided with blind bores of which each receives one end of a fusible element, a spring means for clamping said end of said fusible element against the lateral wall of said blind bore, and a solder joint conductively interconnecting said end of said fusible element and one of said plug terminals.

Abstract: A cartridge fuse carrier assembly has a housing with a recess for receiving a cartridge fuse. The fuse is held compressedly between a contact member at the bottom of the recess, and a conducting ring carried by a cap at the mouth opening of the recess. The cap carries locking means which are moved into the cap-securing position by a transverse movement of the cap relative to the recess, after the cap has been fitted to the mouth opening of the recess. One of the locking means forms an electrical connection between the mouth opening end of the inserted fuse, and a connection terminal.