20PCS Light Fuses 110V 125V 8A Slow-Blow Mini Light Strings Replacement Glass Fuses 0.2 x 0.79 inch / 5 x 20 mm

Specifications:
Body Material: Glass
Size: 5x20mm
Amp Rating: 8A
Voltage Rating: 125V
Fuse Type: Slow Blow (Time Delay)
Package Included:
20x 110V 125V 8A Slow-Blow Time Delay Glass Fuse
The working principle of the fuse is that when the current flows through the conductor, the conductor will have a certain resistance, so the conductor will heat up. After the material and shape of the fuse are determined, the resistance is also determined. When the current flows through it, it will It will generate heat, and its heat will increase with the increase of time. The size of current and resistance determine the speed of heat generation. The structure of the fuse and its installation status determine the speed of heat consumption. If the heat generation speed is less than the heat dissipation At speed, the fuse will not blow. If the rate of heat generation is equal to the rate of heat dissipation, it will not fuse for a long time. If the rate of heat generation is greater than the rate of heat dissipation, then more and more heat will be generated, and the increase in heat will be It will cause the temperature to rise, when the temperature rises above the melting point of the fuse, the fuse will blow.