0453.125NR

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Fuses are an important part of the electrical system and are used in various fields. 0453.125NR is a kind of fuse, its application field and working principle will be introduced in this article.

Application Field

0453.125NR is generally used in automotive and industrial applications. In automotive applications, it can be used for circuit protection in cars, buses and motorcycles. In industry it can be used in various motor controls, surge protection, overvoltage protection and other equipment.

Working Principle

The basic principle of 0453.125NR is to act as an overcurrent protector. It is composed of a metal wire and an insulating tube. When the current in the circuit exceeds the rated current, the metal wire is heated due to the Joule effect and the insulating tube melts due to the heat, which makes the circuit open and the overload current is prevented. The specific working principle is as follows:

When the current in the circuit is less than the rated current, the metal wire of the fuse is not heated and the circuit is not disconnected. When the current in the circuit rises over the rated current, the metal wire of the fuse will be heated due to the Joule effect, at the same time the heat will make the insulation tube of the fuse melt, so that the metal wire breaks down the circuit, that is, the overload current is prevented.

The fuse is reset after the power is cut off. The metal wire can be restored to its original shape, and the insulation tube can be recovered by cooling.

Conclusion

To sum up, 0453.125NR is widely used in automotive and industrial applications. Its working principle is to make the metal wire of the fuse heated due to the Joule effect and the insulation tube melt due to the heat to make the circuit open, thus protecting the circuit from overcurrent.

The specific data is subject to PDF, and the above content is for reference