50A to 150A Circuit Breaker with Manual Reset for Car Audio System Waterproof Marine Circuit Breaker Reset Fuse 12V- 48V DC Specification Material: Plastic and metal Voltage: 12-48V DC Suit gauge wire: 0 - 4 AWG Operating Temperature: -10C to 50C (-14F to 122F) Size: 3.34in (L) x 1.77in (W) x 2.75in (H) Instructions: Can be mounted on circuit of vehicle-mounted speaker or other electric appliance. No need to disassemble or install insurance core when break down. Just switch on or off the device. Functions: For car audio/video system overlord protection Stops power surges from damaging your amps. Features: -Mount on Panel or Firewall. No fuse change trouble & headache Easy to operate with manual reset arm Unique Push Button Reset can also be used as a Kill Switch. High Tech water resistant housing. Self-Testing & Manual Override Application Provide protection for overload or short-circuit current when using high current electricity such as automobiles, ships, ships, RVs, caravans, tractors, loudspeakers, horns, automobile dual-battery isolators, and winches. Audio circuit breakers, Large current thermal trip circuit breaker with manual reset switch, suitable for auxiliary DC electrical system. Simple installation No need to replace the built-in fuse, and it can also be used as an on/off button battery switch. The circuit breaker has simple installation steps and can be installed on any flat panel, or on the wall or in the car.