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Fuses

Fuse is a kind of automatic switch which plays the role of over-current protection in electrical circuit. It is mainly made of fuse body, fuse circuit and other structures. 0297020.U is one type of fuses. Its application field involves residential, agricultural and industrial fields.

0297020.U has a small size and nice appearance. It is reliable, safe and easy to replace. Generally, it can be used to 690V AC circuit, ferrule type fuse links with very low breaking time and current making capability. It is suitable for protecting the short-circuit and overload of AC power system. It can be connected directly which is near to disconnector.

When applying 0297020.U, the advantages includes high breaking capacity, reliable quality, environmentally friendly, anti-reverse connect, anti-termite, anti-heat, etc. The maximum operation current is 20A, and rated operation voltage is 690V. When the fuse working, it can cut off the fault quickly and effectively under short-circuit and overload conditions.

The working principle of 0297020.U can be divided into two parts. Firstly, when current flows through the fuse element, it generates the heat of current, thus resulting in the rapid increase of temperature. Secondly, when the temperature rises above melting temperature, the fuse element will melt and the circuit will be disconnected, thus protecting the circuit from damage.

Although 0297020.U is relatively small, its safety, reliability and accurate tripping are very important for the circuit. The short circuit and overload protection provided by 0297020.U can improve the security and stability of power supply. It is suitable for many applications, so the 0297020.U has become the preferred choice in different application.

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