ADJ12012

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Power relays are a type of electrical switch, typically used to switch a much larger electrical current than what would be used to control the relay itself. They are typically rated in amperes, ranging from a fraction of an ampere on the low end, up to several hundred amperes on the high end. When the rated current is above two amperes, they are generally referred to as ADJ12012. This article will discuss the application fields and working principles of the ADJ12012 relay.

Application Field of ADJ12012 Relay

ADJ12012 relays are widely used within industrial control and automation, and thus it has a huge variety of applications in a variety of industries. Some of these include automotive, medical, aerospace, manufacturing automation, and more. In automotive applications, the relay is often used to control signals from sensors to components like air conditioning, power train, and lighting.

In medical applications, the relay is able to supply power and control signals for medical devices such as respirators, ventilators, and ECG monitors. In aerospace applications, it is utilized in controlling guidance systems, navigation, communication, flight controls, and air auxiliaries. Finally, in manufacturing automation, the relay is used to control industrial processes through various signals.

Working Principle of ADJ12012 Relay

ADJ12012 relays operate by an auxilliary switch, consisting of electromagnetic coils and contacts, to control a larger electric circuit. This switch closes when the coil is energized and stays closed until the coil is de-energized. The coil is typically known as an \'actuator\', and it is energized either by an electrical current or a mechanical force. It is important to note that the magnitude of the current or mechanical force must be sufficient to complete the circuit and, thus, activate the switch.

Once the actuator is energized, the electromagnetism created will attract the contact arm and close the switch. When the actuator is de-energized, the electromagnetism is removed and the contact arm is released, re-opening the switch. Depending on the environment in which the relay is used, the contacts may be designed to be ‘interfacing’ or ‘non-interfacing’. An interfacing contact requires manual control and a non-interfacing contact is designed to self-open and self-close.

Conclusion

The ADJ12012 is a type of power relay where the rated current is above two amperes. It has various applications in various industries such as automotive, medical, aerospace, and manufacturing automation. The working principle of this type of relay is based on the electromagnetism created by an electric current - or mechanical force - to actuate the internal switch that controls the main circuit. Although slightly more involved, this type of relay is extremely reliable, making it popular in various applications.

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