A fuse element assembly has been disclosed. The fuse element assembly includes a fuse element having a pair of side edges and at least one weak spot between the side edges. The fuse element assembly also includes an arc-quenching material attached locally to the fuse element adjacent the weak spot.

A method of making a fuse including inserting a fuse element into a cavity in a hollow fuse body, attaching a first end cap to the hollow fuse body and electrically connecting a first end of the fuse element to the first end cap, adding a mixture of particles including a melamine compound and a steatite of at least 2 times the melamine compound by weightto the cavity such that the mixture of particles are disposed around the fuse element, and attaching a second end cap to the hollow fuse body and electrically connecting a second end of the fuse element to the second end cap.

A fuse with an improved arc elimination performance is provided while an increase in the total length of the fuse element is prevented. A fuse 500 includes a fuse element 100 including at least one fusing portion 120 between terminal portions 110 on both sides. The fuse element 100 includes curved portions 130, which are hollowed, at positions adjacent to the fusing portion 120. An arc-eliminating material 140 is fastened in hollowed portions 131 of the curved portions 130.

A fuse element assembly has been disclosed. The fuse element assembly includes a fuse element having a pair of side edges and at least one weak spot between the side edges. The fuse element assembly also includes an arc-quenching material attached locally to the fuse element adjacent the weak spot.

Fuse assemblies, systems and methods of manufacture include reinforcement materials and arc absorbent materials to provide overcurrent protection for 1500 VDC power systems without enlarging the body of the fuse.

A method for producing an arc quenching fuse filler including providing a conventional fuse filler material, mixing a binder agent with the conventional fuse filler material, mixing an arc quenching promotor with the conventional fuse filler material and binder agent, and curing the binder agent, whereby granules of the arc quenching promotor are bound to granules of the conventional fuse filler material.

An electrical fuse includes a housing, first and second terminal assemblies coupled to the housing, and at least one fuse element assembly extending internally in the housing and coupled between the first and second terminal assemblies. A filler surrounds the at least one fuse element assembly, and the filler includes sodium silicate sand and at least one reinforcing structure suspended within the filler.

A fuse including a fuse body defining an inner cavity and having at least one fuse body aperture formed therethrough, a fuse element including a first terminal and a second terminal, a first endbell and a second endbell coupled to the fuse element, the first endbell having at least two grooves formed in a surface thereof and having a first O-ring seal disposed in at least one of the grooves, the second endbell having at least two grooves formed in a surface thereof and having a second O-ring seal disposed in at least one of the grooves, an adhesive securing the first and second endbells to the fuse body, an arc quenching material disposed within the inner cavity and contacting at least a portion of the fuse element, and end caps coupled to the fuse body, the end caps sealing a portion of the fuse element within the fuse body.

Provided herein are protection devices, such as fuses, including a coiled fusible element. In some embodiments, a fuse includes a body including a center portion extending between a first end and a second end, and a first endcap surrounding the first end and a second endcap surrounding the second end. The fuse may further include a fusible element disposed within a central cavity of the body, wherein the fusible element includes a first coil disposed within the first endcap and a second coil disposed within the second endcap. The fusible element further includes a central wire extending diagonally between the first and second coils.

The invention relates to a melting fuse, especially for a motor vehicle that has a high-voltage circuit, comprising an electrically insulating housing inside of which there is a fusible conductor that connects two contacts with each other, whereby, between two longitudinal areas that are adjacent to each other, the fusible conductor has a rotation point around which the longitudinal areas can be rotated in case of a thermo-mechanical expansion.