Fuse arc extinguishing device.air conditioner fuse block pull-out replacement_Industry Trends_News & Events_XC Electronics(Shenzhen)Corp.,LTD

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05 2023-07

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　　The fuses used in power circuits and high-power equipment not only have the three parts of a general fuse, but also have arc extinguishing devices. This type of fuse not only protects the circuit with a high working current, but also has a high voltage at both ends when the melt melts. Often, the melt has melted (melted) or even vaporized, but the current is not cut off, The reason is that at the moment of fusing, under the action of voltage and current, an arc pulling phenomenon occurs between the two electrodes of the fuse. This arc extinguishing device must have strong insulation and good thermal conductivity, and be negatively charged. Quartz sand is a commonly used arc extinguishing material.

　　Fusing device

　　In addition, some fuses have a blown indicator device, which is used to indicate that when the fuse is activated (blown), its appearance changes to a certain extent, making it easy for maintenance personnel to detect, such as emitting light, discoloring, and popping up solid indicators.

　　

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