Features Overcurrent, Overvoltage, and Residual Current Protection: Provides comprehensive protection for your car stereo o system, ensuring safety and preventing damage from power surges and faults. Easy Installation: Can be easily installed on any panel or wall, making it convenient for car o system setups, without the need for complex installation processes. Waterproof Protective Cover: Equipped with a waterproof cover, ensuring durability and protection against water damage, ideal for use in various environmental conditions. Replaces Inline Fuse Holder: Serves as a reliable alternative to an inline fuse holder, offering efficient and reliable circuit protection for your car o system. Car o/Video Overload Protection: Acts as an overload protector, safeguarding your car o/video system from excessive current and voltage, ensuring uninterrupted entertainment on the go. Specification: 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