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Fuse selection comparison
Dec 30,2019
1) The structure of several fuses is different, and the accuracy of their work requires different prices. Basically, the price of fuses with similar electrical parameters increases gradually from the front to the back.
2) There are differences in breaking ability. The basic function of fuse is to break the circuit in case of fault current. The breaking capacity is an important parameter. Of course, not all fuses are placed in the circuit to protect the short circuit, but the breaking capacity is the capacity indication of the fuse. The breaking capacity of the plug-in fuse is the worst, with a maximum of several thousand a; the breaking capacity of the packing free closed tube type is slightly improved, with a maximum of ten thousand a. Other types, screw type, packing closed tube type and fast fuse, can achieve different breaking capacity according to different design purposes, and the highest level can reach tens of Ka.
3) Different protection objects. Fast fuse is mainly used to protect semiconductor equipment, while common fuse is used to protect wires and cables.
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