Disclosed are various protection devices and associated methods. In some embodiments, a protection device may include a substrate and a fusible element coupled to the substrate, wherein the fusible element may include a first end opposite a second end, and wherein the first and second ends wrap around the substrate. The fusible element may further include a central section comprising a plurality of segments connected end-to-end in a continuous arrangement between the first and second ends, wherein a first set of segments of the plurality of segments extends along a first plane, and wherein a second set of segments of the plurality of segments extends along a second plane, different than the first plane.

Disclosed are various protection devices and associated methods. In some embodiments, a protection device may include a substrate and a fusible element coupled to the substrate, wherein the fusible element may include a first end opposite a second end, and wherein the first and second ends wrap around the substrate. The fusible element may further include a central section comprising a plurality of segments connected end-to-end in a continuous arrangement between the first and second ends, wherein a first set of segments of the plurality of segments extends along a first plane, and wherein a second set of segments of the plurality of segments extends along a second plane, different than the first plane.

The present invention relates to a high breaking capacity strip fuse, comprising an insulating housing and a fusing element. The fusing element includes a fusible part, a first connecting terminal and a second connecting terminal which are arranged at two ends of the fusible part and are integrally connected with the fusible part; the fusible part is fixed in the sealed cavity of the housing, and the sealed cavity is filled with insulating material. The present invention provides a fuse filling with insulating material, such as Silicone, quartz sand, resin, ceramic powder/ceramic sand, steatite powder/steatite sand, or saponite powder/saponite granules, in the sealed cavity, to solve the problem of causing the air to ionize and triggering arcing phenomenon of existing fuse during overload.

The present invention relates to a high breaking capacity strip fuse, comprising an insulating housing and a fusing element. The fusing element includes a fusible part, a first connecting terminal and a second connecting terminal which are arranged at two ends of the fusible part and are integrally connected with the fusible part; the fusible part is fixed in the sealed cavity of the housing, and the sealed cavity is filled with insulating material. The present invention provides a fuse filling with insulating material, such as Silicone, quartz sand, resin, ceramic powder/ceramic sand, steatite powder/steatite sand, or saponite powder/saponite granules, in the sealed cavity, to solve the problem of causing the air to ionize and triggering arcing phenomenon of existing fuse during overload.

A high-voltage fusing apparatus includes a current fuse, a temperature fuse, and a current-carrying fuse. The current fuse is connected in series with the temperature fuse, and a series branch of the current fuse and the temperature fuse is connected in parallel with the current-carrying fuse. A resistance value of the current-carrying fuse is less than a resistance value of the current fuse, and a fusing temperature of the current-carrying fuse is lower than a fusing temperature of the temperature fuse. The high-voltage fusing apparatus can cut off a high-voltage circuit quickly, and effectively protect the high-voltage heating circuit from overheating.

A high-voltage fusing apparatus includes a current fuse, a temperature fuse, and a current-carrying fuse. The current fuse is connected in series with the temperature fuse, and a series branch of the current fuse and the temperature fuse is connected in parallel with the current-carrying fuse. A resistance value of the current-carrying fuse is less than a resistance value of the current fuse, and a fusing temperature of the current-carrying fuse is lower than a fusing temperature of the temperature fuse. The high-voltage fusing apparatus can cut off a high-voltage circuit quickly, and effectively protect the high-voltage heating circuit from overheating.

An electrical fuse is provided. The electrical fuse includes a short circuit fusible element and a trigger element connected in series with the short circuit fusible element. The trigger element is chemically activated rather than mechanically activated to interrupt a predefined overload condition with a predetermined time delay.

A novel fuse assembly design utilizes a fuse body, a single-piece terminal assembly and a two-piece endbell. The terminal assembly is disposed within the fuse body and includes first and second opposing surfaces with a fuse element extending between a first terminal and a second terminal. The endbell, to be connected to the fuse body, includes first and second endbell portions. Formed within the first endbell portion is a first receptacle and extending from the first endbell portion is a first protrusion. Formed within the second endbell portion is a second receptacle and extending from the second endbell portion is a second protrusion. When the two endbell portions are fastened to one another with the terminal assembly sandwiched between them, the first protrusion engages the second receptacle and the second protrusion engages the first receptacle.

A novel fuse assembly design utilizes a fuse body, a single-piece terminal assembly and a two-piece endbell. The terminal assembly is disposed within the fuse body and includes first and second opposing surfaces with a fuse element extending between a first terminal and a second terminal. The endbell, to be connected to the fuse body, includes first and second endbell portions. Formed within the first endbell portion is a first receptacle and extending from the first endbell portion is a first protrusion. Formed within the second endbell portion is a second receptacle and extending from the second endbell portion is a second protrusion. When the two endbell portions are fastened to one another with the terminal assembly sandwiched between them, the first protrusion engages the second receptacle and the second protrusion engages the first receptacle.

Provided herein are protection devices, such as fuses, including a set of trenches or pockets for retention of solder therein. In some embodiments, a fuse includes a body including a center portion extending between a first and second end portions. The first end portion includes a first trench formed in a first end surface, and the second end portion includes a second trench formed in a second end surface. The fuse may further include a first and second endcaps surrounding respective first and second end portions. The fuse may include a fusible element disposed within a central cavity of the body, the fusible element extending between the first end surface and the second end surface. In some embodiments, solder may be disposed within the first trench and the second trench, wherein the solder is in contact with the fusible element, the first endcap, or the second endcap.