A fuse module including a mounting block having a through-hole extending therethrough, a fuse including an upper portion disposed on a top of the mounting block and having a through-hole, a lower portion disposed on a bottom of the mounting block and having a through-hole, and a fusible element disposed adjacent a sidewall of the mounting block and connecting the upper portion to the lower portion, the fuse module further including a housing having a main body portion encasing the mounting block and the fuse, the main body portion having apertures in top and bottom surfaces thereof aligned with the through-hole of the mounting block, and a cap portion connected to the main body portion and disposed over the fusible element, the cap portion having surface features extending from an interior surface thereof for absorbing energy upon occurrence of an overcurrent condition in the fuse.

A fuse resistor includes a substrate, an insulation layer, a fuse element, a protection layer, a first electrode, and a second electrode. The insulation layer covers a surface of the substrate. The fuse element is disposed on a portion of the insulation layer. The fuse element includes a first electrode portion, a melting portion, and a second electrode portion, in which the first electrode portion and the second electrode portion are respectively connected to two opposite ends of the melting portion. The protection layer covers the fuse element and the insulation layer, in which the protection layer has a concave located on the melting portion. The first electrode is electrically connected to the first electrode portion. The second electrode is electrically connected to the second electrode portion.

An airtight surface mount fuse with a cavity has a housing, a conductive fuse, a cover and an encapsulant. The housing has an opening and an airtight inner space. The fusible element has a part disposed inside of the airtight inner space and another part exposed from the opening. The cover is configured to fit into the opening. The encapsulant encapsulates the housing, the cover and a segment of the exposing part of the fusible element. The other segment of the fusible element is exposed from the encapsulant. The inner space of the housing is encapsulated by the encapsulant and becomes airtight. The fusible element is disposed inside of the airtight inner space to prevent the hazard occurring from arc spark interacting with flammable gases when a fusible body of the fusible element is fused. It also ensures the fusible body is affected by the external environment.

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.

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).

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.

The invention concerns a fuse box, comprising a busbar (6) and at least one fuse (8) connected to the busbar, each fuse including two opposite end portions (8A, 8B) and a central portion (82), at least the central portion of each fuse and a section of the busbar being encapsulated in a plastic coating layer. The central portion (82) includes a part (84) of reduced cross-section. The two end portions (8A, 8B) include two respective electrical connectors (81A, 81B), and at least the two electrical connectors (81A, 81B) of each fuse (8) are not encapsulated in the plastic coating layer, so that a new fuse (12) can be connected between the two electrical connectors (81A, 81B) in replacement of a blown fuse (8).

A fuse link including magnet for inducing arc directivity is provided, in which the magnet is arranged in an inner surface, an outer surface or the inside of an insulating tube forming the fuse link, and the progress direction of arc energy is coherently directed in a certain direction in accordance with Fleming's left-hand rule by the direction of magnetic field of the arranged magnet so as to increase a disconnection speed of an element (i.e., reducing a blocking speed of a fault current), thereby increasing fault current blocking performance of the fuse link. In particular, a position of the magnet arranged on the insulating tube is arranged at a middle point between a notched portion and the notched portion, a point of notched portion, and the insulating tube corresponding to the middle point between the notched portion and the notched portion and the point of notched portion.