Features This car audio breaker is used to replace the built-in fuse holder. It has the functions of overcurrent protection, overvoltage protection, residual current protection and overcharge protection. Easy to install, can be installed on any panel or wall. This circuit breaker is provided with a waterproof protective cover. With car audio/video overload protector.Automatic detection, manual recovery. Descriptions: This Circuit Breaker offers critical protection to your system. When the system is over power or short circuit, the breaker will cut and save your equipment. No need to replace the fuses, the system can be reset by a simple switch which also offers safe and instant system shut down. Features: This car audio breaker is used to replace the built-in fuse holder. It has the functions of overcurrent protection, overvoltage protection, residual current protection and overcharge protection. Easy to install, can be installed on any panel or wall. This circuit breaker is provided with a waterproof protective cover. With auto audio / video overload protection.Automatic detection, manual recovery. Specifications: Operation mode: electronic Input voltage: 12-42V DC High current protection(Optional): 50A,  80A, 100A, 150A, 200A, 250A, 300A Breaking speed: normal breaking speed Extinguishing arcing capacity: medium Structure: ACB Polar number: monopole Product size: 74 x 49 x 45mm/2.91 x 1.93 x 1.77inch Stud: 1/4"-28 Product color: black plastic Operating temperature: - 32 ° C ~ 82 ° C Weight: 85g Package Included: 1 x Circuit Breaker Package List