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Home > Tools / Accessories > Electronic voltage and speed regulator AC 220V 4000W

Electronic voltage and speed regulator AC 220V 4000W

$12.00 $0.00
Controllable Silicon Electronic Temperature and Speed Regulator, 220V
Adjustable Single-Phase AC Fan, Fan Motor, Electric Drill, Angle Grinder Temperature and Speed Regulator.
Electronic voltage and speed regulator AC 220V 4000W
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  • Electronic voltage and speed regulator AC 220V 4000W
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  • Electronic voltage and speed regulator AC 220V 4000W
  • Electronic voltage and speed regulator AC 220V 4000W
  • Description
Electronic voltage and speed regulator AC 220V 4000W

Controllable Silicon Electronic Temperature and Speed Regulator, 220V
Adjustable Single-Phase AC Fan, Fan Motor, Electric Drill, Angle Grinder Temperature and Speed Regulator.

Dimensions: 114*100*80mm (including knob)
Input Voltage: AC 220V
Rated Current: 9A (Limit Current 18A)
Output Voltage: AC 38-220V, infinitely adjustable (voltmeter will not operate below 10V)
Voltage Regulator Range: AC 38-220V, infinitely adjustable (under load), stepping down to 0V and stepping up to 10V
Rated Power: 4000W for tungsten filament lamps, 3000W for heating appliances, 2000W for power tools, 1000W for fan
Cord Length: 80cm
Protection Functions: Short Circuit, Overvoltage, Overload, Overcurrent




The installation method is simple, just connect it in series with the electrical equipment.


Scope of application: motors and fans



Resistive heating and tungsten filament lamps (LED energy-saving lamps are not applicable)

Power tools


The following prohibited products:
Note: This product is prohibited from use with products containing circuit boards and capacitors.
Failure to do so may damage your device!


Voltage Regulator Instructions
1: Plug the power cord into a 220V AC outlet and the device into the output socket.
Set the adjustment knob to "0" and turn on the power switch. 
The output voltmeter will now display the voltage (the voltage displayed when no-load is a pseudo-mains voltage. 
A load must be connected to adjust and display the correct voltage).
2. Slowly adjust the knob to increase or decrease the voltage. Avoid sudden increases or decreases. 
The product has a peak power of 4000W and a rated power of 2000W. 
It can be used for temperature control, dimming, speed control, and voltage regulation.

Adjustable Range and Precautions
1. Speed Control: Suitable for 220V fans and AC brushless power tools. 
Note: Do not adjust the speed too low! 
It is generally recommended to adjust the speed to 50% of the motor's original speed and at a voltage of 110V or higher (excessively low speeds will affect motor life). 
If the speed controller has a gear setting, use the highest setting before adjusting the speed.)
2. Temperature Control: Electric stoves, ovens, water heaters, heating rods, electric blankets, etc. 
(Electric appliances with displays and smart circuit boards cannot be adjusted).
3. Dimming: Tungsten filament lamps, incandescent lamps, halogen lamps, heat lamps, 
and 220V high-voltage light strips over 10 meters long. (Electric appliances with circuit boards, LED bulbs, and energy-saving lamps cannot be adjusted).
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