When installing an aftermarket amplifier in a vehicle, it is necessary to mount a protective fuse case to the car battery, which protects the wiring in the event of a short circuit. We offer fuse holders for different types of fuses, so always choose the fuse holder and the corresponding fuse carefully. Circuit breakers replace the function of the fuse box. If you need to cut off the power immediately, the best solution is to use a circuit breaker. With one movement, you unlock the fuse and thus interrupt the power supply. In the event of a short circuit, the circuit breaker will of course trip itself.