The invention relates to an use of a melting conductor (1) for a DC fuse (2) and a high-voltage high-power fuse (2) (HH-DC fuse), wherein the melting conductor (1) comprises an electrically conductive melting wire (3), wherein the melting wire (3) comprises at least two overload narrow sections (4) in the form of a cross-sectional constriction, wherein, preferably between the two immediately successive overload narrow sections (4) a first layer (7) comprising solder and/or surrounding the outer shell surface (6) of the melting wire (3) circumferentially at least in some areas, preferably completely, is provided in at least one first section (5), and wherein a second layer (9) surrounding the outer shell surface (6) of the melting wire (3) circumferentially at least in some areas, preferably completely, is provided adjacent to each of the overload narrow sections (4) in a respective second section (8).

A fuse and a production method therefor. The fuse includes upper and lower insulating layers provided with terminal electrodes, and a fuse element between the upper and lower insulating layers. The fuse further includes a functional layer provided between the fuse element and the insulating layers. The functional layer includes a substrate and an arc extinguishing material uniformly or substantially uniformly distributed in the substrate; the arc extinguishing material includes a sealed cavity; the substrate includes low temperature co-fired ceramic powder, aerosol silicon oxide, silicon oxide, inert resin, phosphoric acid, and phosphate ester polyester; the content of the arc extinguishing material is 1-50 wt %. The fuse overcomes the shortcomings of phenomena such as deformation, bending, and defects occurring to a fuse element caused by the shrinkage mismatch of the fuse element with a buffer layer and an arc extinguishing layer in a sintering process.

A chip type fuse excellent in resistance to climate conditions, where the fuse is able to operate stably under high temperature and high humidity environments. The fuse includes an insulative substrate; an under-glass layer formed on the insulative substrate; a fuse element formed on the under-glass layer; a pair of electrodes formed at both end sides of the fuse element; and an over-glass layer covering at least a fusing section of the fuse element; wherein the fuse element includes a layer where a first metal layer and a second metal layer are piled up, and a barrier layer consisting of a third metal layer, which covers the first metal layer and the second metal layer with a width that is wider than the width of the first metal layer and the second metal layer. The third metal layer overwraps the second metal layer and the first metal layer.

A fuse includes a fuse element and a fuse body. A portion of the fuse element is housed in a fuse body. The fuse element includes a first terminal and a second terminal disposed outside of the fuse body. The first terminal and the second terminal electrically connects the fuse element to a circuit to be protected and a power source. A first endbell and a second endbell is coupled to the fuse element. A predetermined amount of arc quenching material is disposed within the fuse body. The arc quenching material contacts at least a portion of the fuse element. The predetermined amount of the arc quenching material is less than a total volume size of the fuse tube. The arc quenching material is compacted. A remaining air gap in the fuse tube is filled with a liquid adhesive and cured to a solid state.

A fuse and a production method therefor. The fuse comprises upper and lower insulating layers (2) provided with end electrodes (4), and a fuse body (1) between the upper and lower insulating layers (2). The fuse further comprises a functional layer (3) provided between the fuse body (1) and the insulating layers (2). The functional layer (3) comprises a base material (32) and an arc extinguishing material (31) uniformly or substantially uniformly distributed in the base material (32); the arc extinguishing material (31) comprises a sealed hole; the base material (32) comprises low-temperature co-fired ceramic powder, aerosol silicon oxide, silicon oxide, inert resin, phosphoric acid, and phosphate ester polyester; the content of the arc extinguishing material (31) is 1-50 wt %. The fuse overcomes the shortcomings in the prior art of phenomena such as deformation, bending, and defects occurring to a fuse body (1) caused by the shrinkage mismatch of the fuse body (1) with a buffer layer and an arc extinguishing layer in a sintering process because there is no support, the flatness, consistency and integrity of the fuse body (1) are ensured, and the fuse characteristics and production efficiency are remarkably improved.

The invention relates to a triggered fuse for low-voltage applications for protecting devices that can be connected to a power supply system, in particular surge protection devices, consisting of at least one fusible conductor which is located between two contacts and is arranged in a housing, and also consisting of a trigger device for controlled disconnection of the fusible conductor in the event of malfunctions or overload states of the respective connected device, wherein an arc quenching medium is introduced into the housing. By way of example, an arc quenching medium-free region is formed in the housing such that the at least one fusible conductor is exposed, and a mechanical disconnection element can be introduced into the arc quenching medium-free region via an access point in the housing in order to mechanically destroy the at least one fusible conductor depending on the trigger device, and independently of its melting integral.

This protective element includes a first electrode portion, a second electrode portion disposed distant from the first electrode portion, a fuse element portion having spring characteristics, and a case that houses at least a portion of the fuse element portion, wherein the fuse element portion includes a first end section that is connected to the first electrode portion, a second end section that is connected to the second electrode portion, and a cutoff section that is positioned between the first end section and the second end section, and the fuse element portion is held inside the case in a bent state such that, when the fuse element portion is cut, both cut ends of the cutoff section are pulled apart from each other.

Systems, apparatuses, and methods are described for thermal fuse circuit breakers. The thermal fuses described herein may be disposed in a connector, so that, should an overheating condition occur, for example, due to an arc discharge across or inside of the connector, the heat of the arc discharge melts a portion of the fuse, thereby preventing a potentially catastrophic event, such as fire, or damage to a component which may be more expensive than the thermal fuse itself.

The invention relates to a triggered fuse for low-voltage applications for protecting devices that can be connected to a power supply system, in particular surge protection devices, consisting of at least one fusible conductor which is located between two contacts and is arranged in a housing, and also consisting of a trigger device for controlled disconnection of the fusible conductor in the event of malfunctions or overload states of the respective connected device, wherein an arc quenching medium is introduced into the housing. The at least one fusible conductor has a plurality of conventional electrical bottlenecks, which are designed for the rated load of the respective fuse. At least one further additional geometric bottleneck is provided, which is disconnectable by rupturing depending on the trigger unit when applied by tension.

The invention relates to a triggered fuse for low-voltage applications for protecting devices that can be connected to a power supply system, in particular surge protection devices, consisting of at least one fusible conductor which is located between two contacts and is arranged in a housing, and also consisting of a trigger device for controlled disconnection of the fusible conductor in the event of malfunctions or overload states of the respective connected device, wherein an arc quenching medium is introduced into the housing. By way of example, an arc quenching medium-free region is formed in the housing such that the at least one fusible conductor is exposed, and a mechanical disconnection element can be introduced into the arc quenching medium-free region via an access point in the housing in order to mechanically destroy the at least one fusible conductor depending on the trigger device, and independently of its melting integral.