An auto circuit breaker fuse, also known as an automotive circuit breaker, is a device used to protect electrical circuits in vehicles from excessive current. It functions similar to a regular fuse but can be reset instead of being replaced when it trips. Auto circuit breaker fuses are typically found in the fuse box or fuse panel of a vehicle. They are designed to automatically disconnect the circuit and interrupt the flow of current when it exceeds a certain limit. This helps prevent damage to the electrical system and potential fire hazards. When an auto circuit breaker fuse trips, it can be reset by simply pushing a button or flipping a switch. This makes it more convenient than traditional fuses, which need to be replaced once they blow. It is important to note that auto circuit breaker fuses come in different current ratings to match the specific circuit they are protecting. It is crucial to use the correct rating for each circuit to ensure proper protection and prevent damage.