[High Quality] The switch button is smooth, there is no jamming condition. Made of alloy material with good electrical conductivity, high temperature resistance, long service life. The contacts lock firmly in place, not easy to loosen. [Universal Automatic Fuse Switch] Widely used for motorboats replaced with 12-48V voltage input. The use of universal fuses, high sensitivity, can protect the circuit and electrical equipment in time, after disconnection and troubleshooting, can be manually restored and continuously used, can control high current circuits. [Fuse of circuit breaker reset] The circuit is interrupted at any time by pressing a button, for example to prevent leakage currents during the night. After automatic disconnection, it can be reset with a simple action, easy to operate. [Circuit protection] When the current reaches a specified value, the fuse will be automatically turned off and the circuit protected. Avoid overcurrent and protect the device. Overcurrent Protection, Overvoltage Protection, Residual Current Protection, Overload Protection. [Versatile Use] Surface mount self-resetting circuit breakers typically found in auxiliary and accessory circuits of trucks, tractors, motorhomes, buses, motorhomes and marine systems. Can also be used as on/off switch for battery or DC sound amplifier system.