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In the booming photovoltaic industry, various advanced technologies continue to emerge, providing a strong impetus for the use of clean energy. Behind these technologies, there is a seemingly inconspicuous but crucial "little role" - photovoltaic DC fuse, which is silently guarding the safe and stable operation of the photovoltaic system.

Choose a suitable fuse ‌: When choosing a fuse, you should choose an appropriate current rating according to actual needs. Usually, the fuse's fusing current is set to 1.5 to 2.0 times its rated current. For example, when the total power of household appliances exceeds 1100 watts, a 5-ampere fuse can be selected.

The material selection of fuses is directly related to their protection performance. Low melting point alloys (such as lead-antimony alloys) are the most commonly used core materials, while glass, ceramics, aluminum alloys and organic composite materials provide diversified solutions according to specific application scenarios.

The working principle of fuse is mainly based on the thermal effect of current and the physical properties of metal conductor expansion due to heat.