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SCR Voltage Controller AC 110V 220V/15A/ 4000W Variable Speed Controller Fit for Router Fan Electric Motor Rheostat Black

3.7 out of 5 stars 56 ratings
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Purchase options and add-ons

Colour Black
Brand matell
Voltage 110 Volts
Product Dimensions 11.4L x 9.9W x 6.1H Centimetres
Material Metal

About this item

  • Suitable for excitation motors, power tools and high power resistive load with built-in rheostat, such as fans, hand-held routers, electric kettles, electric stoves, electric soldering irons, etc.
  • High quality: the metal shell is flame retardant and does not deform under high temperature, and the metal spray paint is not easy to rust. The precision module has high precision, high power
  • Powerful Function: The voltage controller has variable thyristor and electronic voltage regulator. The maximum power of connecting inductive loads (such as fans, routers) is about 1500W, and the limit power of connecting resistive loads (such as electric furnaces, heating wires) is 4000W
  • Applicable to: resistance electric heating, such as hair dryers, electric stoves, tungsten lamps, water heaters, etc. Motor electric fans, such as: motors, electric fans, etc.
  • High Security: No delay, surge protection, anti-spike, arc-suction multiple protection, both input and output current are AC, effectively ensuring your safety. The core chip adopts a new type of bidirectional high-power thyristor with a maximum current of 15A, which effectively solves the problem of wire overcurrent when the heat dissipation resistance is too large
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SCR Voltage Controller AC 110V 220V/15A/ 4000W Variable Speed Controller Fit for Router Fan Electric Motor Rheostat Black
This item: SCR Voltage Controller AC 110V 220V/15A/ 4000W Variable Speed Controller Fit for Router Fan Electric Motor Rheostat Black
$39.00
Get it by Sunday, Jul 6
In Stock
Sold by CHEEA and ships from 鶹 Fulfillment.
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ZOWZEA AC Motor Variable Speed Controller 120V 15A 4000W with Overload Protection Switch
$44.25
FREE Delivery
In Stock
Sold by JYShop and ships from 鶹 Fulfillment.
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Product Description

  • 1.Inductive Loads(Speed Control):Should not exceed 1400W

    2.Resistive Loads(Dimming/Temperature Control):Should not exceed 1800W

    The device power should be greater than 60W.

  • Voltage readings without a connected load are virtual values.A load of more than 20W must be connected to measure the correct output voltage.

  • Not compatible with smart devices (e.g., circuit board-equipped appliances, LED lights with drivers, or digital displays).

  • Avoid using for applications requiring ultra-precise speed control or extremely low RPM.

SCR voltage controller
SCR voltage controller

Product information

Technical Details

Item weight ‎1.1 Pounds
Display type ‎LED
Operating temperature ‎25 Degrees Celsius
UPC ‎741451632333
Manufacturer ‎matell
Batteries Required ‎No

Additional Information

ASIN B0BRXVRQ2N
Customer Reviews
3.7 out of 5 stars 56 ratings

3.7 out of 5 stars
鶹 Rank
Date First Available Jan. 9 2023
Manufacturer matell

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SCR Voltage Controller AC 110V 220V/15A/ 4000W Variable Speed Controller Fit for Router Fan Electric Motor Rheostat Black

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From the brand

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    At matell, Inspired by "A house divided cannot stand", our designs carry three vows: Quality,Durability,Weatherproof . In an age of fragility, we engineer trust into every joint - transforming living spaces into vaults of shared memories.We aspire to help families build a more harmonious and stable living environment through our products and services and become a long-term trusted partner of families.

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Price$39.00-23%$35.99
Was: $46.71		$39.99-5%$23.66
Was: $24.99
Delivery
Get it by Sunday, Jul 6
FREE Delivery
FREE Delivery
Get it Jul 23 - Aug 13
Customer ratings
3.73.7 out of 5 stars56
4.04.0 out of 5 stars173
4.14.1 out of 5 stars163
4.24.2 out of 5 stars77
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Customer reviews

3.7 out of 5 stars
56 global ratings

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Customers say

Customers like the functionality and readout of the controller. They mention it works well, the SCR voltage controller did the job, and the display of output voltage is very helpful. Customers also say the digital readout is easy to see and super convenient for when they want to go back.

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FunctionalityReadout
10 customers mention "Functionality"10 positive0 negative

Customers like the functionality of the controller. They mention it works well, the display of output voltage is very helpful, and the SCR voltage controller did the job.

"...This works ok for that purpose but there are a few caveats: 1. QA issues. My unit arrived with a random screw jammed into the outlet receptacle...." Read more

"...The SCR voltage controller did the job and saw cuts great." Read more

"Works great for my pot still, easy to regulate power to heating element. Digital readout easy to see." Read more

"The design is well made. Compact and light weight. Works great." Read more

3 customers mention "Readout"3 positive0 negative

Customers like the readout of the controller. They mention it's easy to see and the display of output voltage is very helpful.

"This thing is great.. I've bought others but having the readout is super convenient for when you want to go back to that speed after you've changed..." Read more

"...Digital readout easy to see." Read more

"Works well. Display of output voltage is very helpful." Read more

Nonlinear voltage output; QA issues
4 out of 5 stars
Nonlinear voltage output; QA issues
I am using this to control the speed of the fan in an air filter using a PSC AC motor. Such motors have quadratic torque but fans have quadratic drag so overall the airflow should be linear in voltage. This works ok for that purpose but there are a few caveats: 1. QA issues. My unit arrived with a random screw jammed into the outlet receptacle. It got dropped in there at some point by the manufacturer. I managed to fish it out with needlenose pliers - barely - but very annoying. Also It makes me worry about other quality issues. 2. The voltage is not linear in the dial setting. In particular, setting it to 50% only gives about 30V. Great if you want fine control over voltages at the low end, not so great if you want fine control at the high end. 3. Unit seems designed for 220V systems but works on my 120V system. But 4000W rating is probably for 220V, so scale that down to 2000W for a 120V supply. 4. Needs to have load to regulate voltage. Which probably means you should not use it for systems that need exactly a particular voltage first when turned on, e.g. electronics. This is meant for things like AC motors (at least, certain kinds that can be controlled by voltage) and resistive loads, like (small!) heaters.
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Top reviews from Canada

  • Travis S.
    5.0 out of 5 stars Controls the fan speed
    Reviewed in Canada on March 12, 2025
    Verified Purchase
    This thing is great.. I've bought others but having the readout is super convenient for when you want to go back to that speed after you've changed it up. Also it's nice not to have to add your own cord ends
    One person found this helpful
    Helpful
     Report
  • Helena
    1.0 out of 5 stars IT DOES NOT WORK AT ALL
    Reviewed in Canada on April 26, 2025
    Verified Purchase
    IT DOES NOT WORK AT ALL. SPENT TIME AND MONEY TO BUY AND RETURN WARE WASTED.
    TO AMAZON: IF SOMETHING DOES NOT WORK, A RETURN SHOULD BE FREE FOR THE BUYER?!
    One person found this helpful
    Helpful
     Report
  • Luc Drouin
    5.0 out of 5 stars work well.
    Reviewed in Canada on April 22, 2025
    Verified Purchase
    The product is what I was expected. Fast delivery.
    Helpful
     Report
  • Michael McCool
    4.0 out of 5 stars Nonlinear voltage output; QA issues
    Reviewed in Canada on December 10, 2023
    Verified Purchase
    I am using this to control the speed of the fan in an air filter using a PSC AC motor. Such motors have quadratic torque but fans have quadratic drag so overall the airflow should be linear in voltage. This works ok for that purpose but there are a few caveats: 1. QA issues. My unit arrived with a random screw jammed into the outlet receptacle. It got dropped in there at some point by the manufacturer. I managed to fish it out with needlenose pliers - barely - but very annoying. Also It makes me worry about other quality issues. 2. The voltage is not linear in the dial setting. In particular, setting it to 50% only gives about 30V. Great if you want fine control over voltages at the low end, not so great if you want fine control at the high end. 3. Unit seems designed for 220V systems but works on my 120V system. But 4000W rating is probably for 220V, so scale that down to 2000W for a 120V supply. 4. Needs to have load to regulate voltage. Which probably means you should not use it for systems that need exactly a particular voltage first when turned on, e.g. electronics. This is meant for things like AC motors (at least, certain kinds that can be controlled by voltage) and resistive loads, like (small!) heaters.
    Customer image
    Michael McCool
    4.0 out of 5 stars
    Nonlinear voltage output; QA issues

    Reviewed in Canada on December 10, 2023
    I am using this to control the speed of the fan in an air filter using a PSC AC motor. Such motors have quadratic torque but fans have quadratic drag so overall the airflow should be linear in voltage. This works ok for that purpose but there are a few caveats: 1. QA issues. My unit arrived with a random screw jammed into the outlet receptacle. It got dropped in there at some point by the manufacturer. I managed to fish it out with needlenose pliers - barely - but very annoying. Also It makes me worry about other quality issues. 2. The voltage is not linear in the dial setting. In particular, setting it to 50% only gives about 30V. Great if you want fine control over voltages at the low end, not so great if you want fine control at the high end. 3. Unit seems designed for 220V systems but works on my 120V system. But 4000W rating is probably for 220V, so scale that down to 2000W for a 120V supply. 4. Needs to have load to regulate voltage. Which probably means you should not use it for systems that need exactly a particular voltage first when turned on, e.g. electronics. This is meant for things like AC motors (at least, certain kinds that can be controlled by voltage) and resistive loads, like (small!) heaters.
    Images in this review
    Customer imageCustomer image
    8 people found this helpful
    Helpful
     Report
  • Steve Hiebert
    5.0 out of 5 stars Makita metal saw works with metal blade
    Reviewed in Canada on February 13, 2025
    Verified Purchase
    I have a makita abrasive saw for cutting steel. I wanted to use a carbide metal saw blade but I needed to cut the speed of the motor by half or more. The SCR voltage controller did the job and saw cuts great.
    One person found this helpful
    Helpful
     Report
  • 鶹 Customer
    5.0 out of 5 stars Efficiency & easy of use
    Reviewed in Canada on June 11, 2024
    Verified Purchase
    Works great for my pot still, easy to regulate power to heating element. Digital readout easy to see.
    One person found this helpful
    Helpful
     Report
  • Alexey
    1.0 out of 5 stars Does not match the parameters
    Reviewed in Canada on May 5, 2025
    Verified Purchase
    the description says it's 110 volts, but in reality it was 220 volts
    Customer image
    Alexey
    1.0 out of 5 stars
    Does not match the parameters

    Reviewed in Canada on May 5, 2025
    the description says it's 110 volts, but in reality it was 220 volts
    Images in this review
    Customer imageCustomer image
    One person found this helpful
    Helpful
     Report
  • 鶹 Customer
    4.0 out of 5 stars it works
    Reviewed in Canada on April 30, 2024
    Verified Purchase
    it works
    Helpful
     Report

Top reviews from other countries

  • BobEaseShop
    5.0 out of 5 stars Does what it should do and can make some tools safer
    Reviewed in the United States on February 24, 2025
    Verified Purchase
    I have used this a few times now and like it. Makes some tools safer and I like adjusting the speed of my bench & die grinder. I made a video on YT: bobeaseshop
    Report
  • michael israel
    1.0 out of 5 stars Wasted money.
    Reviewed in the United States on May 22, 2025
    Verified Purchase
    I can't really review this because it came with the cord cleanly cut in half about 3" from the plug. It was too much hassle to try to send it back because I live in the country and not computer savvy. Maybe someday I'll buy a plug for it but probably not.
    Report
  • james richardson
    5.0 out of 5 stars Does the job
    Reviewed in the United States on August 30, 2023
    Verified Purchase
    Well built and works great. Got this to slow a motor down and does the job just not quiet heavy enough watt wise for motor. Used it on another project and works great.
    Report
  • Benjamin H.
    2.0 out of 5 stars It works well
    Reviewed in the United States on July 31, 2024
    Verified Purchase
    Rated for 15 amps. Make sure it's 15a circuit or that your not pulling more than that. Overload protection failed
    Report
  • Susan
    5.0 out of 5 stars It works
    Reviewed in the United States on December 16, 2023
    Verified Purchase
    We needed this to control router speed on a router that had lost speed control. This is perfect. It works exactly how we had hoped
    Report