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Relay as part of the electrical system of the vehicle

Relay for cars, jeeps and buses are part of the electrical system of the vehicle. The relay is generally a solenoid switch. When power is applied, the relay coil can be switched on or off. The function of the relay power circuit can be closed (connected) or open (off) to the electrical device application.

When the line relay is open, the function is turned off and will not work, but when the line is closed the relay function will work. The main relays consist of a copper coil (wire) and a set of contacts.

The most common relay coil has a long copper wire wrapped around a metal core. When voltage is applied to the coil, current passes through the copper wire and creates a magnetic field. This magnetic field pulls the contacts together and holds them there until you cut off the current in the coil. The relay can be used in many parts of the vehicle, powered by electricity at 12 volts.

The relay can have different values ​​and modes of loading depending on the status and parameters of the electrical products it uses. The relay is used in appliances such as lights, blinkers, wipers, lights, electric windows, alarm systems, vehicle audio system, heated seats, onboard computer, central locking, fuel pump, starter, glow plugs and many other areas related to the electrical system of the vehicle.

There are two specifications that should be considered when selecting a relay for your car: coil voltage and current options for making contacts. Voltage of the winding coils in the relay, which is used in cars, 4x4s and most buses is 12 volts.