---
product_id: 638393870
title: "AC Variable Speed Controller, 120V~220V 15A 4000W SCR Voltage Controller for Router Fan Electric Motor Rheostat"
brand: "sdrgeek"
price: "€ 74.87"
currency: EUR
in_stock: null
reviews_count: 8
category: "Sdrgeek"
url: https://www.desertcart.es/products/638393870-ac-variable-speed-controller-120v-220v-15a-4000w-scr-voltage
store_origin: ES
region: Spain
---

# 15A max current 4000W max resistive load 0-220V adjustable output AC Variable Speed Controller, 120V~220V 15A 4000W SCR Voltage Controller for Router Fan Electric Motor Rheostat

**Brand:** sdrgeek
**Price:** € 74.87
**Availability:** ❌ Out of Stock

## Summary

> ⚙️ Master your power, control your craft — voltage on your terms!

## Quick Answers

- **What is this?** AC Variable Speed Controller, 120V~220V 15A 4000W SCR Voltage Controller for Router Fan Electric Motor Rheostat by sdrgeek
- **How much does it cost?** € 74.87 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/638393870-ac-variable-speed-controller-120v-220v-15a-4000w-scr-voltage)

## Best For

- sdrgeek enthusiasts

## Why This Product

- Trusted sdrgeek brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Robust Power Handling:** Supports up to 15A current and 4000W resistive load for heavy-duty applications.
- • **Industrial-Grade Safety:** Zero hysteresis with peak absorption circuit protects against spikes and overloads.
- • **Precision Voltage Control:** Seamlessly adjust output from 0 to 220V for tailored power delivery.
- • **Premium Thermal Management:** All-aluminum heat sinks and FR-4 boards ensure durability under high temperatures.
- • **Versatile Appliance Compatibility:** Ideal for fans, routers, motors, and heating devices—empower your workspace with control.

## Overview

The AC Variable Speed Controller is a high-performance SCR voltage regulator compatible with 120V to 220V inputs, delivering up to 15A current and 4000W power for resistive loads. Engineered with premium materials like SMD thyristors and aluminum heat sinks, it offers precise voltage adjustment (0-220V) and robust protection circuits for safe, reliable operation. Perfect for managing speed and power in fans, routers, electric motors, and heating appliances, it’s the essential tool for professionals seeking customizable power control without compromising safety.

## Description

AC Variable Speed Controller, 120V~220V 15A 4000W SCR Voltage Controller for Router Fan Electric Motor Rheostat - desertcart.com

Review: Excellent Variac Controller - Bought this for use with a 240v griddle from the EU. The griddle has no temp control and 220v was too hot. Using this controller, we were able to adjust the voltage and thus the griddle temperature to just the right degree, which is about 185v for our task. I wasn't sure if this would work, but it works very well.
Review: Works great on our old Kitchen Aide mixer. - Our old Kitchen Aide stand mixer speed switch quit working. Bought this variable speed controller and love it. Works great and much cheaper than a new mixer.

## Features

- 【Powerful Functions】Compatible with 120V/220V power input, the maximum current is 15A, the output voltage is adjustable from 0-220V, and the limit power is 400W. 4000W is the maximum power when working under a resistive load, and the inductive load is 1/3 of the resistive load.
- 【High-quality Materials】 imported high-quality SMD thyristors, all-aluminum heat sinks are suitable for high-temperature circuits, FR-4 circuit boards are heat-resistant and durable, and double-sided copper layer welding increases safety. Note: The product is a metal case and must be grounded safely!
- 【Safe and Reliable】 With zero hysteresis and zero delay, it has a peak absorption circuit, which can effectively protect the high power thyristor from sweat, spikes and RC absorption. It is also equipped with multifunctional industrial sockets and thickened phosphor bronze fittings. Multiple layers of fortification give you comprehensive security protect.
- 【Applicable Appliances】 Our AC motor speed controllers can be widely used in fans, electric stoves, water heaters, small motors, electric irons, tungsten lamps and other electrical appliances. At present, most motors do not support voltage regulation (such as single-phase motors, asynchronous motors, dual-value capacitor motors, etc.), and are not suitable for smart home appliances with complex circuit boards.
- 【Please Note】 Not suitable for smart appliances with complex circuit boards. The maximum power of connecting inductive loads (such as fans and routers) is about 1500W, and the limit power of connecting resistive loads (such as electric furnaces and heating wires) is 4000W. Resistive loads refer to tungsten lamps, heating wires, etc., and inductive loads refer to series-excited motors.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0C2VLSVR5 |
| Batteries required | No |
| Best Sellers Rank | #137,861 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #61 in Electrical Motor Controls |
| Customer Reviews | 4.1 4.1 out of 5 stars (159) |
| Display Type | LCD or LED |
| Included Components | controller |
| Item Weight | 1.08 pounds |
| Item model number | SD-4000W-01 |
| Manufacturer | SDRGEEK |
| Product Dimensions | 4.49 x 3.94 x 3.15 inches |

## Product Details

- **Brand:** SDRGEEK
- **Color:** Black
- **Item Weight:** 1.08 Pounds
- **Material:** Metal
- **Product Dimensions:** 4.49"L x 3.94"W x 3.15"H

## Images

![AC Variable Speed Controller, 120V~220V 15A 4000W SCR Voltage Controller for Router Fan Electric Motor Rheostat - Image 1](https://m.media-amazon.com/images/I/511e1SAoe3L.jpg)
![AC Variable Speed Controller, 120V~220V 15A 4000W SCR Voltage Controller for Router Fan Electric Motor Rheostat - Image 2](https://m.media-amazon.com/images/I/512PyHl8moL.jpg)
![AC Variable Speed Controller, 120V~220V 15A 4000W SCR Voltage Controller for Router Fan Electric Motor Rheostat - Image 3](https://m.media-amazon.com/images/I/51CwaWqimSL.jpg)
![AC Variable Speed Controller, 120V~220V 15A 4000W SCR Voltage Controller for Router Fan Electric Motor Rheostat - Image 4](https://m.media-amazon.com/images/I/51FWof0bDVL.jpg)
![AC Variable Speed Controller, 120V~220V 15A 4000W SCR Voltage Controller for Router Fan Electric Motor Rheostat - Image 5](https://m.media-amazon.com/images/I/51IkhYqRyoL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent Variac Controller
*by C***R on February 18, 2025*

Bought this for use with a 240v griddle from the EU. The griddle has no temp control and 220v was too hot. Using this controller, we were able to adjust the voltage and thus the griddle temperature to just the right degree, which is about 185v for our task. I wasn't sure if this would work, but it works very well.

### ⭐⭐⭐⭐⭐ Works great on our old Kitchen Aide mixer.
*by E***E on November 4, 2025*

Our old Kitchen Aide stand mixer speed switch quit working. Bought this variable speed controller and love it. Works great and much cheaper than a new mixer.

### ⭐⭐⭐⭐ Good tool to work with I recommend it
*by J***N on July 29, 2025*

It works great I'm using it on my drill press which works excellent

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*Product available on Desertcart Spain*
*Store origin: ES*
*Last updated: 2026-01-24*