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4000W AC220V Adjust control Transformer regulator Voltage fan speed regulator for fan

4000W AC220V 10-220V Adjust Voltage temperature speed Luminosity Thyristor SCR AC electronic regulator Product Description Main Function: The thyristor electronic voltage regulator is mainly used

4000W AC220V 10-220V Adjust Voltage temperature speed Luminosity

Thyristor SCR AC electronic regulator

Product Description


Main Function:

The thyristor electronic voltage regulator is mainly used for resistive loads (Incandescent lamps, etc.), single-phase AC brushless motor, adjustable pressure range from 20V-220V, more suitable for low voltage drive heating wire Factory use: such as cutting styrofoam, pearl cotton, raincoats make it to adjust the voltage, reduce power and so on. With the new bi-directional high-power thyristor, the current is up to 40 amps, which solves the over-current problem caused by the electric resistance of the electric furnace wire when cooling is too small; it can easily adjust the output voltage of the mains at 10V- Continuously adjustable between 220V, zero delay, zero hysteresis. Use case: Heat regulation of electric stove and water heater, dimming of lamps and lanterns, small motor speed adjustment, electric iron thermostat and so on, so as to achieve the effer of temperature adjustment, dimming, speed regulation, and pressure regulation.



1. Please use within the rated power and voltage range, only suitable for AC grid.

2. It is a normal phenomenon that there is slight heat during work. Please use it in a dry and ventilated place. 3. Input AC 220V power, turn on the power switch, slowly adjust the voltage knob to change the voltage.

4. The machine does not adapt to the capacitor motor, adapt to the brush motor speed and electric wire resistance conductor.

5. The machine does not adapt to work on soft start or slow start voltage regulator.

6. Attention must first load and then adjust the voltage



Electric furnace, water heater, the lamps and laterns that move light, small motor, solder iron temperature control and so on (Inductive or capacity load power should be reduced, the voltage regulator is equipped with two-way high-power thyrister, don't add any component can use , very convenient and practical.)



Product name Thyristor electronic regulator
Product number WBT-4000W
Input voltage AC220V
Output voltage 10-220V adjustable (the output voltage is less than the input voltage)
Maximum power  4000W (at 220V)
Voltage regulation range 0-220V stepless adjustable (with load conditions) step-down can be 0, boost starting 20V or so.
Rated current 9A 
Maximum current 18A
Product Features Zero hysteresis, zero delay, with a peak voltage to attract the circuit to effectively protect high-power thyristor against surge, anti-spike, RC absorption of multiple protection

Thyristor electronic regulator 


1 4000W SCR4 4000W SCR3 4000W SCR


Thyristor electronic regulator Use range

Household appliances, industrial electrical appliances, scientific test equipment, factories, schools and other electrical equipment


Note: must first turn on the load and then debug voltage (measured voltage)


SCR is mainly applied to resistive load (electric wire incandescent lamp, etc.), single-phase AC power can also be the majority, guaranteed not guaranteed, other types of load please buyers to confirm. Fuse is not a panacea, there is reaction time, if the current is too large, in addition to burn out the fuse, the module may burn, the voltage range can be really adjustable from 10V-220V smooth, more suitable for low voltage driven heating wire industrial enterprises Use: such as cutting styrofoam, Zhenzhu Mian, raincoat production.


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4000W AC220V 10-220V Adjust Voltage temperature speed Luminosity Thyristor SCR AC electronic regulator 4000W AC220V 10-

temperature speed Luminosity Thyristor SCR AC electronic regulator


Q:How to order our product ? 

A:1).Please tell us the model and quantity and other request you need. 

   2).We make the PI for you.

   3).After you confirm the PI, we arrange the order for you after receiving your payment.

   4).After the goods finished, we send the goods out to you and tell you the tracking number.

   5).We will track your goods until you receive the goods. 

Q:  What's your warranty ?

A: 1-2 years

Q: What's your contact information:

A: Our address: Liushi town, Zhejiang province, China. 

Q: What's your shipment method?

A: We ship by Express, by air, by sea, by train. Normally we checked and compare, then provide

customer the most proper shipment method.

Q: What's about MOQ?

A: First order MOQ=1pcs

Q: If i want to release order, what's the payment method you accept ?

A: We accept T/T, Paypal, Western union, L/C,etc.

Q: If i want to release order, what's the process?

A: Thanks. You can send inquiry to us by alibaba, or send us by email, we will reply within 24hrs.


Trade Information

Payment terms T/T,L/C,Western union,Paypal,Escrow,MoneyGram
Payment conditions 30% deposit in advance,70% balance before shipping.
Delivery time 3-7working days after deposit,2-4 working days for inventory
Packing Neutral carton,Wooden case for large size
Shipping By sea,by air and by express delivery

Company Information

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Contact us

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ADD:NO. 18 QunYing Road, Xingguang Industrial Zone, liushi, Yueqing City, Zhejiang, China

Tel: +86 577 61787391               Fax:+86 577 61787392            Skype: NQQK ELC

Mobile/WeChat/WhatsApp:+86-139 6878 5810     /          

E-mail:sales at

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