FN378-4-21

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Power entry connectors, including inlets, outlets, and modules, are critical components of all kinds of electrical and electronic equipment. The FN378-4-21 connector is particularly designed for combination inlet and outlet applications. In this article, we will discuss the application field and the working principle of the FN378-4-21 connector.

The FN378-4-21 connector is designed primarily as an inlet and outlet combination, and can be used in a wide range of applications. These mainly include consumer entertainment and medical equipments, household appliances, office machinery, camping trailers and RVs (recreational vehicles), as well as marine vessels. The combination of inlet and outlet provides maximum convenience for users because it allows them to use a two-way power connection, making it easy to switch between various power sources. Moreover, the FN378-4-21 connector has a high inrush current capability and enhanced surge protection up to 10 times the rated current.

The working principle of the FN378-4-21 connector is quite simple. It functions as an AC connector inlet, providing an air-tight seal with the mating connector pin, keeping dust and dirt particles away from the electrical contacts. It is also designed with two current rating contacts and two voltage rating contacts. The current rating contacts protect against overheating and current overload, while the voltage rating contacts provide overvoltage protection. The combination of both current and voltage protection ensures safe and reliable power connection.

The FN378-4-21 connector also comes with a patented thermal cutoff system which, when activated, regulates the temperature of the entire connector to prevent overheating. The thermal cutoff system is capable of high temperature regulation and can be used in both outdoor and indoor situations. It is also designed to be IP66 rated for dust and water resistance. In addition, the connector features LED indicator lights, providing visual indication of the connector’s status.

In conclusion, the FN378-4-21 connector is an ideal choice for combination inlet and outlet applications. It provides efficient power connection with its two current rating contacts and two voltage rating contacts. Its patented thermal cutoff system, dust and water resistance, and LED indicator lights make it a reliable and safe power connector. This connector is suitable for a wide range of applications, making it an ideal power entry solution.

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