resettable 15 amp fuse.The main function and working principle of fuses in fuse circuits_mini cooper fuse box factory_XC Electronics(Shenzhen)Corp.,LTD

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12 2024-01

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　　Fuses are commonly known as fuses or fuse tubes. The earliest fuse was invented by Edison over a hundred years ago. Due to the underdeveloped industrial technology at that time, incandescent lamps were very expensive, so they were initially used as fuses to protect expensive incandescent lamps. Fuses protect electronic devices from current damage and can also prevent serious injuries caused by internal faults in electronic devices. Therefore, each fuse has a rated specification, and when the current exceeds the rated specification, the fuse will melt. When a current between the conventional non fusing current and the rated breaking capacity specified in relevant standards is applied to a fuse, the fuse should be able to operate satisfactorily without endangering the surrounding environment.

　　The expected fault current of the circuit in which the fuse is installed must be less than the rated breaking capacity current specified in the standard. Otherwise, when a fault occurs, the fuse will experience continuous arcing, ignition, burning out, melting together with the contact parts, and the fuse marking cannot be recognized. Of course, the breaking capacity of low-quality fuses does not meet the standard requirements, and it can also cause harm during use.

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