39215000440

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Fuses are important components of electrical equipment and are widely used in the production and application of electronic products. The 39215000440 is an important type of fuses in the application field. This article will discuss its application field and working principle.

Application Field

The application range of the 39215000440 fuse is wide. It is mainly used in the secondary AC power distribution system. This kind of fuse has good breaking capacity and low power loss. It can be used in the circuit with high frequency and long service time when the circuit is in good operating state.

At the same time, the 39215000440 is suitable for protecting electronic devices in a variety of ways, such as short circuit protection, current limiting protection, surge protection, and so on. It helps to ensure the safe, reliable operation of the electrical system. Besides, it is also commonly used to protect power pilots, relays, contactors, solenoids, power lights, and other high current load equipment.

Working Principle

The 39215000440 fuse is composed of an upper and a lower part. The lower part is the core part, which is made of a conductive material, usually copper. It is connected to the upper part, which is the fuse tube. The fuse tube is made of metal, ceramic, or nonmetallic material.

The 39215000440 fuse is composed of a fuse element, an isolation slit, and a spring. When the current through the fuse element exceeds its rated value, the temperature generated by the current will cause the fuse element to expand. At this time, the isolation slit will be opened by the spring, and the current in the circuit will be shut off.

Conclusion

The 39215000440 fuse is used in a variety of applications. It has high breaking capacity and low power loss, and can protect various electronic devices. Its working principle is based on the expansion of the fuse element due to a current overload, which is then opened by the spring in the isolation slit. This helps to ensure the safe operation of the electrical system.

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