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.

An electrical cartridge fuse including a cylindrical housing, first and second terminals coupled to the cylindrical housing, and a fuse element inside the housing and interconnected between the first and second terminals. The fuse element has a main body having at least five openings formed therein in a single line along a longitudinal axis of the fuse element, a guide element formed on a first end of the main body, and a hanger element formed on the second end of the main body. The cartridge fuse has a package size of about 6×32 mm and a voltage rating of at least 500 VADC, a 20 kA IR Rating, a current rating of 12 A to 30 A and a defined opening time at 100% rated current.

An electrical cartridge fuse including a cylindrical housing, first and second terminals coupled to the cylindrical housing, and a fuse element inside the housing and interconnected between the first and second terminals. The fuse element has a main body having at least five openings formed therein in a single line along a longitudinal axis of the fuse element, a guide element formed on a first end of the main body, and a hanger element formed on the second end of the main body. The cartridge fuse has a package size of about 6×32 mm and a voltage rating of at least 500 VADC, a 20 kA IR Rating, a current rating of 12 A to 30 A and a defined opening time at 100% rated current.

There is provided an electric-power conversion apparatus in which smoke emission, a burnout, and short-circuiting between a melted material and a peripheral member can be suppressed even when a fuse portion is melted by an excessive current. An electric-power conversion apparatus includes an electric power semiconductor device, an electrode wiring member, a case, a fuse portion formed in the electrode wiring member, a fuse resin member disposed between the fuse portion and the case, and a sealing resin member that seals the electric power semiconductor device, the electrode wiring member, the fuse portion, and the fuse resin member in the case.

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.

A mechanical breaking and fusing combined multi-fracture excitation fuse includes a shell, wherein a cavity is formed in the shell, and at least one conductor penetrates through the shell and penetrates through the cavity; at least one excitation device and one breaking device are arranged in the cavity of the shell; the excitation device can receive an external excitation signal to drive the breaking device to act to break a conductor corresponding thereof to form at least two fractures on the conductor, at least one fuse is connected in parallel onto the conductor. The melt is connected in parallel with at least one fracture, and the melt is connected in series with at least one fracture.

An electronic assembly, has at least one circuit board with conductor tracks, at least one current-limiting arrangement in the form of a thermal predetermined breaking point in at least one of the conductor tracks, and a fire-containment device in the region of the current-limiting arrangement.

Fuse, comprising at least one fuse blade in which is formed a reduced section (46A) defining a plane (P4) transverse to the fuse blade. The fuse also comprises arc guards, which are made of an elastic material and which are associated in pairs, the arc guards of the same pair being each disposed opposite one another on one respective main side of the same fuse blade. Each arc guard comprises an internal face, oriented towards the fuse blade, a front face, oriented towards the reduced section, and a rear face, oriented away from the reduced section. At least one perforation is made in the fuse blade in the vicinity of the reduced section, each perforation being at least partially closed by the internal faces of the two arc guards of the same pair, each perforation leaving a cavity between the two arc guards of the same pair.

Disclosed are various protection devices and associated methods. In some embodiments, a protection device may include a fuse assembly having a fusible link extending between a first lead end and a second lead end, and a first lead extending from the first lead end and a second lead extending from the second lead end. The protection device may further include a body including a first section coupleable with a second section, wherein the first and second sections define a central cavity housing the fusible link. The first section may include an interior face operable to engage an opposite interior face of the second section, an engagement member extending away from the interior face towards the second section, and an engagement channel adjacent the engagement member, the engagement channel operable to receive a corresponding engagement member of the second section.

Disclosed are various protection devices and associated methods. In some embodiments, a protection device may include a fuse assembly having a fusible link extending between a first lead end and a second lead end, and a first lead extending from the first lead end and a second lead extending from the second lead end. The protection device may further include a body including a first section coupleable with a second section, wherein the first and second sections define a central cavity housing the fusible link. The first section may include an interior face operable to engage an opposite interior face of the second section, an engagement member extending away from the interior face towards the second section, and an engagement channel adjacent the engagement member, the engagement channel operable to receive a corresponding engagement member of the second section.