Cylindrical fuses are small protective devices engineered to protect electrical circuits and equipment from overcurrent or short circuit conditions. They comprise a fuse element housed in a cylindrical case of ceramic or glass which provides both electrical insulation and durability. The fuse operates by melting the internal element when the current exceeds their rated limit, breaking the circuit and preventing damage. Cylindrical fuses are commonly used in industrial panels, control equipment (e.g., motor starters), and home appliances due to their simple design and reliable function. Cylindrical fuses are available with many years of ratings, are relatively inexpensive, and provide an efficient and much standardized solution for electrical protection.