KUE-4021

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This article will focus on the KUE-4021 application field and working principle, on the classification of Power Relays that exceed 2 amperes. Most power relay products have application fields and specific working principles that need to be considered in order to ensure that the relay is used at its fullest potential. The KUE-4021 power relay is an example of a power relay that exceeds the 2 ampere rating. Its application fields and working principles are detailed below.

Application Fields

The KUE-4021 is a double contact power relay that is suitable for use in all motor loads with a maximum powered voltage of 600V. Its power contacts are rated for 2 amperes and its control voltage is 70V. This type of power relay is also suitable for heavy industrial process machinery and other high power applications, and has several safety features such as a self-locking mechanism, preventing accidental or unexpected triggering of the relay.

The KUE-4021 can also be used as a main power switch in low voltage power systems, such as solar power systems, providing a high current rating with low power dissipation. Its low resistance contacts make it suitable for use in high voltage applications, providing reliable control in harsh working environments.

Working Principle

The working principle of the KUE-4021 power relay is based on a series of magnetic contacts that actuate the relay when the coil is energized. The relay is actuated when the electromagnet is energy, closing the contact points and turning on the load. When the energizing coil is de-energized, the magnetic field is no longer maintained, releasing the contact points and turning the load off. The relay can also be actuated manually, allowing for use in both manual and automatic modes.

The KUE-4021 has an adjustable current trip setting, allowing for more precise on-off control in applications where over-current conditions are expected. A thermal overload device is also included, providing protection from high current conditions.

The KUE-4021 also features a built-in surge suppression property, which ensures that the relay will not suffer from surges in current caused by sudden changes in voltage. This allows the KUE-4021 to provide a reliable and durable power control in any application.

Conclusion

The KUE-4021 is a popular double contact power relay that is suitable for a variety of applications. Its application field consists of motor loads and other applications requiring high current ratings with low power dissipation. Its working principle is based on a series of magnetic contacts that actuates the relay when the coil is energized, and it can also be actuated manually. It also features adjustable current trip settings, overload protection, and surge suppression. This makes the KUE-4021 an ideal choice for any application.

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