Function: This circuit breaker can protect the amplifier from damage caused by overload current or voltage. Meanwhile, the power supply can also be protected to prevent battery cracks and explosions caused by short circuit. Application: Generally used in auxiliary and accessory circuits for trucks, buses, RVs, ATV winches, and marine applications. Also used in battery charges and DC sound amplifier system. Specification: 60A, compatible with all 12V/24V systems. Use at instead of an inline fuse holder and the unique reset button can also be used as a circuit breaker. Durable: Made of alloy materials, waterproof housing, good conductivity, strong temperature and pressure resistance. Save your money to replace the inline fuse holder. Easy to Use: Manual reset, just press the button and the circuit will close/open. No need to disassemble the power cord and the screw terminals hold the cables securely in place, can be mounted on a panel or firewall.