A protection system for an electrical apparatus is disclosed. The protection system includes a baffle assembly and a coating for electrical elements exposed to arc gasses. The baffle assembly includes a number of generally planar sidewalls, each sidewall including a first edge surface, a second edge surface, and a third edge surface. The sidewalls are disposed in a spaced, generally parallel configuration defining a number of channels. A first end wall, is sealingly coupled to each sidewall first edge. A second end wall is sealingly coupled to each sidewall second edge. A third end wall is sealingly coupled to each sidewall third edge. The terminals of an electrical apparatus are disposed in an aligned set with one set of terminals in each channel. The channels are structured to limit the flow of arc gasses across adjacent sets of terminals.

A fuse discharge filter is provided. The fuse discharge filter includes a housing assembly defining an enclosed passage, a coil including a number of sheets of expanded metal. The expanded metal coil is substantially disposed in the housing assembly enclosed passage.

A fuse discharge filter is provided. The fuse discharge filter includes a housing assembly defining an enclosed passage, a coil including a number of sheets of expanded metal. The expanded metal coil is substantially disposed in the housing assembly enclosed passage.

Provided is a chip fuse and a method for producing the same, which is improved to facilitate balanced release of impact and vapor generated upon fusion. The chip fuse includes a fuse body having a pair of facing upper and lower ceramic substrates, a fuse wire support having a vertical through hole in its center and held between the ceramic substrates, and a fuse wire mounted between the two ends of the fuse wire support across the through hole, and a pair of metal caps fitted on the two ends of the fuse body, wherein the upper ceramic substrate and the fuse wire support, and the lower ceramic substrate and the fuse wire support, are respectively adhered together on their mutually facing surfaces to hermetically close the through hole, partially leaving a non-adhered region on the adhered surfaces.

A fuse device is provided that can include a rectangular fuse and a round fuse socket cap that can include a rectangular receptacle for receiving the fuse. The fuse socket cap and the fuse can be free of red phosphorous, and the rectangular receptacle can consume a percentage of a surface area or a volume of the fuse socket cap below a predetermined threshold that prevents reduction of a breaking capacity of the round fuse socket cap.

A fuse device is provided that can include a rectangular fuse and a round fuse socket cap that can include a rectangular receptacle for receiving the fuse. The fuse socket cap and the fuse can be free of red phosphorous, and the rectangular receptacle can consume a percentage of a surface area or a volume of the fuse socket cap below a predetermined threshold that prevents reduction of a breaking capacity of the round fuse socket cap.

A protection system for an electrical apparatus is disclosed. The protection system includes a baffle assembly and a coating for electrical elements exposed to arc gasses. The baffle assembly includes a number of generally planar sidewalls, each sidewall including a first edge surface, a second edge surface, and a third edge surface. The sidewalls are disposed in a spaced, generally parallel configuration defining a number of channels. A first end wall, is sealingly coupled to each sidewall first edge. A second end wall is sealingly coupled to each sidewall second edge. A third end wall is sealingly coupled to each sidewall third edge. The terminals of an electrical apparatus are disposed in an aligned set with one set of terminals in each channel. The channels are structured to limit the flow of arc gasses across adjacent sets of terminals.

A bus bar current interruption device comprising a casing, providing an enclosure, and a bus bar arrangement. The bus bar arrangement is arranged to extend through the enclosure and comprises a first terminal end portion and a second terminal end portion, each of said first and second terminal end portions arranged outside of the casing. The bus bar arrangement further comprised a first fuse portion and a second fuse portion arranged in the enclosure. The casing comprises an exhaust opening configured to allow escape of vapor from the enclosure. The exhaust opening is fluidly connected to an exhaust chamber or conduit formed by the casing or attached to the casing.

A bus bar current interruption device comprising a casing, providing an enclosure, and a bus bar arrangement. The bus bar arrangement is arranged to extend through the enclosure and comprises a first terminal end portion and a second terminal end portion, each of said first and second terminal end portions arranged outside of the casing. The bus bar arrangement further comprised a first fuse portion and a second fuse portion arranged in the enclosure. The casing comprises an exhaust opening configured to allow escape of vapor from the enclosure. The exhaust opening is fluidly connected to an exhaust chamber or conduit formed by the casing or attached to the casing.

A molded filler pad for encapsulating a fuse element can include one or more collection channels and one or more molded walls. The collection channels can guide conductive particulates from the fuse element along interior walls of a fuse body housing the fuse element to control any venting of the conductive particulates. The molded walls can press against the interior walls of the fuse body to control where the conductive particulars redeposit and prevent the same from redepositing in a connected path. The collection channels and the molded walls can be molded into a single device for filling the fuse body and be formed from a material that can remain undamaged and physically intact even when exposed to pressure and heat from an electrical arc of the fuse device that is produced as the fuse element opens to interrupt a circuit.