A. This circuit breaker is specifically designed for cars, RVs, yachts, etc., and is suitable for general vehicle models, with relatively wide applicability. It is a protection switch integrating multiple functions and can be used as a fuse holder for car audio restoration. It can effectively handle large - current situations and provide stable current support for electrical equipment. B. Its unique design can protect the circuit from the influence of short - circuits and overloads. When a short - circuit or overload occurs in the circuit, it can quickly cut off the circuit to prevent electrical equipment from being damaged due to excessive current and ensure the safety of the equipment. C. This circuit breaker is available in a variety of specifications, including 30A, 40A, 50A, 60A, 80A, 100A, 150A, 200A, 250A, 300A, etc. You can choose the appropriate specification according to actual needs to meet the power requirements of different equipment. D. In addition, it has an authorized private brand behind it, and the quality is trustworthy. Whether it is the daily use of cars or special scenarios such as RVs and yachts, this circuit breaker can be a reliable guardian of your electrical system.