A. This circuit breaker audio automatic reset fuse holder switch features a highly adaptable design, suitable for various scenarios such as cars, RVs, and yachts. It is designed with a universal model, fitting most vehicle models and having wide applicability. B. In terms of specifications, it offers multiple high - current options, including 30A, 40A, 50A, 60A, 70A, 80A, 100A, 120A, 150A, 200A, 250A, 300A, etc. It can meet different current requirements and provide precise and effective current protection for devices in various power - using environments. C. This fuse holder switch has an automatic reset function. When an abnormality occurs in the circuit, it can quickly cut off the current to ensure the safety of equipment and personnel. After the fault is eliminated, it can automatically resume power supply, which is very convenient to use. D. This product has an authorized self - owned brand, and its quality is reliable. It sells well in regions such as Africa, Europe, South America, Southeast Asia, North America, Northeast Asia, and the Middle East. It is a good choice for ensuring the stable operation of various electrical equipment.