This automatic circuit breaker switch recovery fuse holder is an ideal overload and short - circuit protector for vehicles and boats. It is specifically designed for the audio modification of cars, RVs, and yachts, with extremely wide applicability and is suitable for all vehicle models. The protector is made of bakelite material, which is not only sturdy and durable but also weighs only 0.12 kg. Its light - weight design won't add extra burden to vehicles and boats. With dimensions of 84*56*43 mm, it is small and delicate, making it easy to install in limited spaces. In terms of performance, it has a voltage range of 12 - 48V, a power of 10W, and a signal - to - noise ratio of 10dB, providing stable and reliable protection for the electrical systems of vehicles and boats. It offers a variety of specifications, including 30A, 40A, 50A, 60A, 80A, 100A, 125A, 150A, 200A, 250A, and 300A, which can meet the diverse needs of different users. This product is highly favored in regions such as Africa, Europe, South America, Southeast Asia, North America, Northeast Asia, and the Middle East due to its excellent design and reliable performance. It also has an authorized private brand, and its quality is trustworthy. Whether for the daily use of vehicle and boat electrical systems or special needs such as audio modification, this automatic circuit breaker switch recovery fuse holder is an excellent choice.