# Question: How many RPM is a windshield wiper motor?

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Some wiper motors have variable speeds of up to 60 revolutions per minute (rpm). Other motors can support different windshield wiper blade angles from 40 degrees up to 110 degrees to maximize wipe performance.

## How powerful is a windshield wiper motor?

The standard voltage requirement for the wiper motor is 12 volts DC. The electrical system in a running automobile usually puts out between 13 and 13.5 volts, so it’s safe to say the motor can handle up to 13.5 volts with no problem.

## How much torque does a wiper motor have?

“ My unscientific test (using one wiper motor and a torque wrench) found that at 12 volts, on high speed, the motor has 13.5 pound-feet and on low speed, has 17.5 pound-feet of torque.” Depending on the type of motor, they can draw anywhere from 5 to 10 amps.

## How do you control the speed of a wiper motor?

If your motor is a two-speed motor, you can install a simple switch that allows you to set the wiper speed to low or high, as well as to set the wipers to “Off.” “Off” sometimes is called “Park” because this setting allows the wipers to slowly return to their original position before they stop.

## How much current does a windshield wiper motor draw?

Wiper motors are used by enthusiasts to power wheel chairs. You might do well to google “wiper motor current draw”. At any rate an average wiper draws 5 amps, rising to 10 to 12 amps under heavy/stall load.

## How many HP is a wiper motor?

Depending on the type of motor, they can draw anywhere from 5 to 10 amps. So converting that to HP using 13V as voltage and 65% efficiency, you get 0.11HP. While that depends on factors like size of wiper, vehicle it might be used for, etc, generally the rating will be under 100 watts.

## How many amps is a 12V wiper motor?

Wiper motors will probably not exceed 50 watts (4.2 amps at 12 volts).

## How does a 2 speed wiper motor work?

Power is applied to the wiper motor at all times when the ignition switch is on, and the motor is grounded by the operation of the dash switch. As soon as the wiper blades move to some position other than the park position, the parking switch inside the wiper applies ground to the motor.

## What kind of motor is a wiper motor?

The wiper motor is a DC (direct current) 12V motor that includes a set of gears and a park switch. The park switch allows the motor to stop when wipers are positioned at the bottom of the windshield in their “park’ position.

## Why does a wiper motor have 3 brushes?

The wiper motors now in use (Fig. 30.3) are mostly of permanent magnet three brush types, which are driven through a worm gear to increase torque and reduce speed. The three brushes permit two speed operations. … For a fast speed the third brush is installed closer to the earth brush.

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## Does a wiper motor need a relay?

Many wiper motors don’t need much current to run. Their wiper controls connect directly to the wiper motor without a relay.

## How do variable speed wipers work?

It sends out a beam of infrared light that, when water droplets are on the windshield, is reflected back at different angles. This tells the system to activate the wipers, as well as adjust wiper speed and frequency based on the intensity of the precipitation combined with the vehicle’s speed.

## How does a wiper motor work?

A short cam is attached to the output shaft of the gear reduction. This cam spins around as the wiper motor turns. The cam is connected to a long rod; as the cam spins, it moves the rod back and forth. The long rod is connected to a short rod that actuates the wiper blade on the driver’s side.