A bolt-on fuse is a type of electrical fuse that is designed to be mounted directly onto a circuit board or electrical panel using bolts or screws. This type of fuse is commonly used in industrial and commercial applications where high current protection is required. The bolt-on fuse typically consists of a fuse element enclosed in a protective housing. The housing is designed to provide insulation and protection from external factors such as dust, moisture, and physical damage. The fuse element is made of a material that can melt or break when excessive current flows through it, thereby interrupting the circuit and protecting the electrical equipment. Bolt-on fuses are available in various current ratings and voltage levels to suit different applications. They are often used in motor control centers, power distribution units, and other electrical systems that require reliable and efficient protection against overloads and short circuits. When a fault or overload occurs in the circuit, the bolt-on fuse will blow or trip, disconnecting the faulty circuit from the power source. This helps prevent damage to the electrical equipment and ensures the safety of personnel working with or around the equipment.