Fuses are safety devices used to protect electrical circuits from overheating or short circuits. Electrical circuits may be exposed to the risk of overheating when it rises above a certain current level, in which case the fuse will break the circuit, preventing damage to the circuit and reducing the risk of fire. Fuses ensure the safety and longevity of electrical circuits.

Fuses can be produced in various shapes and sizes and can be selected to suit different electrical circuits. For example, different fuses are used for AC and DC electrical circuits. In addition, there are different options according to the capacity of the fuses, and this capacity indicates the maximum amount of current that the fuses can break. Fuses are often used as the first layer of protection for the protection of electrical circuits and are used in conjunction with other safety devices.