A Car Auto Fuse is an electrical safety device used in automotive systems to protect circuits from overcurrent and short circuits. When the electrical current exceeds a safe level, the fuse melts or "blows," interrupting the flow of electricity and preventing damage to components such as wiring, lights, and electronic devices. Auto fuses come in various types and sizes, such as blade fuses, glass tube fuses, and ceramic fuses, and they are essential for maintaining the safety and functionality of a vehicle's electrical system.