【Material】: The circuit breaker is made of alloy material, which has good conductivity, high temperature resistance and voltage resistance, and can be used for a long time. 【Waterproof Housing】: The optional 30A-150A circuit breaker reset fuse holder with high-tech waterproof housing can reduce unnecessary consumption and make it safer to use. 【Easy to Use】: No need to replace expensive fuses, just reset the system via a simple switch, and you will immediately get back to listening to your favorite music.Easy to use with manual reset arm. 【Function】: Fuse holders prevent excessive current and overload protection for amps, audio electronics, audio/video systems and accessories of cars, boats, marine vehicles and mopeds from surgesof their amplifiers. 【Wide Application】: Typically used in auxiliary circuits and accessories for trucks, buses, RVs and marine applications.Also used in battery charges and audio system.