---
product_id: 451688731
title: "EC Buying ZK-BMG DC Motor Speed Controller, DC Motor Controller 9V-60V/12A/50..."
brand: "ec buying"
price: "€ 19.66"
currency: EUR
in_stock: null
reviews_count: 8
category: "Ec Buying"
url: https://www.desertcart.de/products/451688731-ec-buying-zk-bmg-dc-motor-speed-controller-dc-motor
store_origin: DE
region: Germany
---

# 12A rated current, 20A max surge Compact 79x43x26mm size PWM adjustable frequency 1KHz-99KHz EC Buying ZK-BMG DC Motor Speed Controller, DC Motor Controller 9V-60V/12A/50...

**Brand:** ec buying
**Price:** € 19.66
**Availability:** ❌ Out of Stock

## Summary

> ⚙️ Master your motor’s rhythm with precision and power!

## Quick Answers

- **What is this?** EC Buying ZK-BMG DC Motor Speed Controller, DC Motor Controller 9V-60V/12A/50... by ec buying
- **How much does it cost?** € 19.66 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.de](https://www.desertcart.de/products/451688731-ec-buying-zk-bmg-dc-motor-speed-controller-dc-motor)

## Best For

- ec buying enthusiasts

## Why This Product

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

## Key Features

- • **Robust Power Handling:** Supports up to 12A continuous current and 500W power, built to outlast your toughest projects.
- • **Smart Memory Retention:** All settings saved instantly on power off—no need to recalibrate every time.
- • **Versatile Connectivity:** Compatible with 3.3V control signals and external switches for seamless integration into any setup.
- • **Precision Speed Control:** Digitally adjustable PWM frequency and duty cycle for ultra-smooth motor speed tuning.
- • **User-Friendly Interface:** Intuitive digital encoder knob with LED display for real-time feedback and effortless adjustments.

## Overview

The EC Buying DC Motor Speed Controller is a compact, high-performance PWM module designed for DC motors operating between 9V and 60V. It delivers up to 12A continuous current and 500W power with adjustable frequency from 1KHz to 99KHz, enabling precise speed control via a digital encoder knob and LED display. Its robust build includes anti-reverse protection, memory retention of settings, and versatile input options, making it ideal for professional-grade motor control applications.

## Description

EC Buying ZK-BMG DC Motor Speed Controller, DC Motor Controller 9V-60V/12A/500W DC Encoder, PWM Control Adjustable Speed Variable Rotary Switch PWM Signal Generator Module: desertcart.com: Industrial & Scientific

Review: Great device - Works great for my application. Built a fan for my side by side and it controls the speed great.
Review: Works Perfectly for my use case - I already reviewed this but here it is again. My use case was to provide variable speed control to a 12v Kamado Joe smoker air blower fan motor. I selected this PWM unit because the exterior design would look almost "factory" on my blower motor housing. The terminal block is well labeled and robust. The dial is a digitizer which makes it a lot more flexible. When I first tested this set up, the controller was not linear, meaning the fan didn't turn on until the dial was set above 20% power. After that, the motor speed ramped up to 100% at a setting of 50% on the digitizer. That would have worked but i wanted a very fine linear control as air flow on a KJ is critical to stable temps. I corrected this by inserting a 4.7 ohm 25-watt resistor on the + fan lead. It now works perfectly. The motor starts at 1% and ramps up to full speed at 100% dialed power setting. My motor only draws 1.5 amps so the 12A capacity of this unit indicates major over engineering so it should last a long time.

## Features

- ♥Product parameters: 1. Working voltage: DC9V~60V, input anti-reverse connection protection 2. Rated current: 12A, maximum current 20A 3. Maximum power: 500W 4. Operating frequency: 1KHz~99KHz adjustable, 1KHz step, default frequency 20KHz, accuracy about 1% 5. Duty cycle: 0-100%, 1% step 6. Product size: 79mm*43mm*26mm Installation hole size: 39.3mm*76.5mm 7. Product weight: 43g (bare weight), 65.5g (with packaging) 8. All settable parameters are stored when power is off.
- ♥ Wiring Instructions: ① Motor start and stop indicator: start light on, stop light off ②Digital tube: display the duty cycle of motor adjustment, upper and lower limit of duty cycle and frequency ③Digital tube: Display the motor adjustment duty cycle, upper and lower limit of duty cycle and frequency" ④It can be connected to switch signal or 3.3V level signal to control the start and stop of the motor ⑤ Motor output positive and negative poles Power input positive and negative
- ♥ Digital encoder knob operation: ①In the default interface: (the default display is the duty cycle) Short press: switch the motor on and off. Press and hold for 10 seconds: enter the setting interface. Counterclockwise rotation: the duty cycle decreases. Clockwise rotation: increased duty cycle.
- ♥②Setting interface: Short press: select the setting parameter, the setting parameter can be switched between ON-OFF, duty cycle lower limit, duty cycle upper limit, and operating frequency. ON-OFF is the default module power-on normally open or normally closed, the lower limit of the duty cycle is displayed in the form of "L" + two digits, and the upper limit of the duty cycle is displayed in the form of "H" + two digits or "100", the operating frequency Displayed in the form of "+two digits".
- ♥STOP port on the back: It can be connected to external switch buttons or a 3.3V level. Do not use it in complex electromagnetic environments, and there is no relevant protection inside the circuit. (Note that the external switch should use a self-reset button or key, press it once to turn it on, and press it again to turn it off; it cannot realize the function of always closing the output to open, and not closing the output to close).

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0B393M4PS |
| Batteries required | No |
| Best Sellers Rank | #14,589 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #5 in Motor Speed Controllers |
| Customer Reviews | 4.4 4.4 out of 5 stars (97) |
| Display Type | LED |
| Item Weight | 1.52 ounces |
| Manufacturer | EC Buying |
| Product Dimensions | 3.11 x 1.69 x 1.02 inches |

## Product Details

- **Brand:** EC Buying
- **Color:** black
- **Item Weight:** 43 Grams
- **Material:** iron
- **Product Dimensions:** 3.11"L x 1.69"W x 1.02"H

## Images

![EC Buying ZK-BMG DC Motor Speed Controller, DC Motor Controller 9V-60V/12A/50... - Image 1](https://m.media-amazon.com/images/I/61-7NbmbDUL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great device
*by K***S on February 22, 2026*

Works great for my application. Built a fan for my side by side and it controls the speed great.

### ⭐⭐⭐⭐⭐ Works Perfectly for my use case
*by T***0 on January 14, 2026*

I already reviewed this but here it is again. My use case was to provide variable speed control to a 12v Kamado Joe smoker air blower fan motor. I selected this PWM unit because the exterior design would look almost "factory" on my blower motor housing. The terminal block is well labeled and robust. The dial is a digitizer which makes it a lot more flexible. When I first tested this set up, the controller was not linear, meaning the fan didn't turn on until the dial was set above 20% power. After that, the motor speed ramped up to 100% at a setting of 50% on the digitizer. That would have worked but i wanted a very fine linear control as air flow on a KJ is critical to stable temps. I corrected this by inserting a 4.7 ohm 25-watt resistor on the + fan lead. It now works perfectly. The motor starts at 1% and ramps up to full speed at 100% dialed power setting. My motor only draws 1.5 amps so the 12A capacity of this unit indicates major over engineering so it should last a long time.

### ⭐⭐⭐⭐ Is what is advertised and works well so far.
*by H***Y on January 18, 2025*

Have already been using it. Won't give 5 stars until it shows longevity and not a burn out . The cabinet it's mounted in includes a cooling fan so I don't think it'll ever over heat especially when only .9 amps as its only loading at the moment and that won't change unless the motor goes bad maybe? A lot less room needed than for other motor speed controllers which was a plus. Maybe not as much power handling as larger units but not needed for my application. Display is bright and clear and the units control pot is very responsive. The connection terminals are better than others and look good. CAUTION! The wiring sticker on this controller was not matching the actual board designated polarities. Someone was reading upside down. Just peel and turn around. So far a good value if it doesn't crap out for no reason. Don't know any reason it would. One thing that I wish the companies producing these small panel mounts would produce and offer, an angled bezel for tilting them upwards or downward for easily reading when high or low. For my application I don't mind squatting or bending down to read but is not always practical and at my age sometimes painful. As my application of them has me tilting them upwards on the panel face. Top edge of the included bezel is touching the face of panel face and the bottom edge is approximately .250 inches from the face of the panel. This request has no bearing on the unit itself or it's rating from me. Personaly I don't own a three d printer or these would be pretty easy to print. Bottom line is so far so good and nice.

## Frequently Bought Together

- EC Buying ZK-BMG DC Motor Speed Controller, DC Motor Controller 9V-60V/12A/500W DC Encoder, PWM Control Adjustable Speed Variable Rotary Switch PWM Signal Generator Module
- ALITOVE DC 12V 5A Power Supply Adapter Converter Transformer AC 100-240V Input with 5.5x2.5mm DC Output Jack for 5050 3528 LED Strip Module Light

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.de/products/451688731-ec-buying-zk-bmg-dc-motor-speed-controller-dc-motor](https://www.desertcart.de/products/451688731-ec-buying-zk-bmg-dc-motor-speed-controller-dc-motor)

---

*Product available on Desertcart Germany*
*Store origin: DE*
*Last updated: 2026-03-13*