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This is done by manufacturers to reduce the amount of large, heavy wire in the run from the battery to a switch, and then from a switch to the high current using device.
They run a shorter heavy wire the shortest distance from the battery to the device, with a relay added in the circuit. They then run lighter control wire from the relay to a lighter/cheaper switch in the passenger compartment.
This serves two purposes:
- Saving of weight, reducing overall weight of the vehicle, and
- Reducing the amount of Copper wire, and thus material cost.
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∙ 14y ago
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What the use of relay?
A; Its uses is to switch hi power loads with isolation
What are the uses of the relay?
They can be used as a kind of safety switch to allow a circuit with a small current through to switch on a circuit that will hve a larger current flowing through it.
Where is the 1984 Plymouth reliant oil relay switch?
Oil relay switch? No such switch on this vehicle.
Does a 1988 Chevy silverado 3500 have a fuel relay switch?
Relay, yes. Reset switch, no.Relay, yes. Reset switch, no.
Will a relay with a 40 amp rating function properly in a circuit with a 30 amp fuse?
Yes. The rating of a relay is how much current it can switch on and off, not how much it uses or must have.
What is a ignition relay?
The relay is a device that typically uses low amperage 12 vdc electrical (control voltage) to switch a much higher amperage circuit (load voltage). In the case of an ignition relay, the key/ignition switch is not capable of handling the high amperage requirements of the engine components electrical draw, so a relay is run in the circuit and controlled with the keyswitch. The relay has an electromagnet (control) and a switch (load) inside, and the electromagnet moves the switch when the control is energized. You do not ALWAYS have to have a burned fuse to have a bad relay, the contacts on the switch can burn, or the wire in the electromagnet can open, both resulting in a non-functioning relay.
What is a reylay for electric scooters and what does it do?
A relay is an electric switch that is operated by another switch. Sounds confusing, but a relay uses a small amount of current to control a large amount of current. A tiny switch on the handlebars of the electric scooter causes the relay to turn on. When the relay turns on it is actually a switch that is large enough to control the power needed to run the motor of the scooter. You wouldn't want a large switch on the handlebars, plus if you DID put the large switch there you would need a large wire that could run the motor. Running the scooter with a relay makes good sense and is good electrical design.
What is a split phase motor with relay and capacitor called?
A capacitor start motor is a split phase motor that uses a capacitor in series with the start winding to cause a greater phase shift, resulting in greater starting torque. It uses a centrifugal switch to switch out the start winding and capacitor once the motor is up to speed. I assume this switch is what you're referring to as a "relay".
Were is the Oldsmobile intrigue relay switch located?
Were. Is the oldsmobile intrigue relay switch. Loocated
What does a fuel pump relay switch look like?
The fuel pump relay switch looks like the normal electric switch. The function of fuel pump relay switch is turn the fuel pump on.
Where is fan relay switch located?
location of the fan relay switch on a 1989 Chevy Corsica
Does the Malibu have a fuel pump shut off relay switch?
Relay, yes. Inertia switch, no.
