Open circuit protection-- Rubber protective caps prevent unnecessary short circuits. When the current reaches the cut-off value, the long handle automatically rebounds and cuts off the power. Generally, it trips in a short circuit condition. After the fault is cleared, press the long handle back to its original position to form a path. Rated Power-- Current 100A , Voltage 12-48V DC, yellow manual reset button, accessories Including 2 wire lugs and 4 copper washers, improve conductivity. Audio Circuit Breaker Auto Reset Fuse Holder is the perfect substitute for your AGU ANL AFS type fuse holders. directly on the oval yellow insurance button. At this time, the long handle automatically appears to cut off the power. Connect as above, then push the long handle back to its original position. Simple and convenient to install on the panel or firewall. Waterproof Design-- IP67 waterproof level, insulation material design, electrical hazard protection. The single button reset can also be used as a closing switch. High-tech waterproof case, convenient and durable in use. Ideal for use in harsh environments, such as motorsports, to provide current overload or short circuit protection. Universal Car Circuit Breaker-- Widely used for boats motor car with 12-48V voltage input replacement. Switchable surface mount circuit breakers typically found in auxiliary and accessory circuits of trucks, buses, RVs and marine systems. Please confirm your original circuit type before purchasing.