What’s an aux relay?

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Auxiliary relays assist other devices in performing actions by opening or closing circuits. They are used in electronic devices such as lights, televisions, phones, computers, and automobiles. Examples include wall switches and power buttons.

An auxiliary relay is a relay that assists another relay or device in performing an action. It does this when its operating circuit is open or closed. These relays are used in almost all electronic devices to help them function properly. In essence, it is as simple as an action taken on the relay that causes a circuit to open, complete or close and not allow power to pass through it.

An example of an auxiliary relay in action can be seen when a light is turned on in a house. The auxiliary relay is the wall switch. Once the relay is opened by flipping the switch to turn on the light, a signal is sent to tell the light to turn on. When the relay is closed or the light switch is flipped in the opposite direction, a separate signal is sent to cut off power to the light.

Another example of such a relay is a television power button. When a viewer presses the power button to turn on their television, they are opening the relay. A signal is then sent to the main power to turn on the TV. When he presses the power button again, he closes the relay and the power goes out.

Yet another type of auxiliary relay can be found in a telephone. When someone is calling or an individual picks up the phone to call someone, the relay opens, allowing the call to be transmitted or received. When users have completed the phone call, the relay will close until the phone is used again.

Computers also have these types of relays. When the computer is off and the user presses the power button, it opens the auxiliary relay and tells the computer to turn on. If the user presses the power button again, the relay closes, signaling the main electrical sources in the computer to shut down or shut down.

Control relays are also used in automobiles. When the user turns the ignition key to the auxiliary position, this tells the car’s electrical system that anything that works, such as the radio, will be powered by the car’s battery. In this case the auxiliary relay is in the open position. Once the key is turned in the ignition and the car starts, the auxiliary relay is closed and anything that works will run from the alternator.




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