---
product_id: 206202711
title: "DC PWM Motor Controller——Standard"
brand: "harmnee"
price: "RM176"
currency: MYR
in_stock: null
reviews_count: 8
category: "Harmnee"
url: https://www.desertcart.com.my/products/206202711-dc-pwm-motor-controller-standard
store_origin: MY
region: Malaysia
---

# 40A rated current CW/CCW rotation control Aluminum heat dissipation DC PWM Motor Controller——Standard

**Brand:** harmnee
**Price:** RM176
**Availability:** ❌ Out of Stock

## Summary

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

## Quick Answers

- **What is this?** DC PWM Motor Controller——Standard by harmnee
- **How much does it cost?** RM176 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.com.my](https://www.desertcart.com.my/products/206202711-dc-pwm-motor-controller-standard)

## Best For

- harmnee enthusiasts

## Why This Product

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

## Key Features

- • **Stay Cool Under Pressure:** Robust aluminum enclosure with strategic ventilation ensures superior heat dissipation.
- • **Seamless Directional Control:** Effortlessly switch between clockwise and counterclockwise rotation with a simple toggle.
- • **Power Through with Confidence:** Handles up to 40A rated current and peaks at 60A for demanding motor control.
- • **Versatile Industrial Application:** Perfect for brush motor speed regulation and DC circuit light dimming—engineered for professionals.
- • **Precision Speed at Your Fingertips:** Smooth stepless potentiometer lets you dial motor speed from 0% to 100% with LED feedback.

## Overview

The HARMNEE DC PWM Motor Controller is a high-performance, aluminum-encased device designed for DC brush motors. Operating between 10V-55V, it supports a rated current of 40A (max 60A) and offers stepless speed control from 0% to 100% via an intuitive potentiometer and LED display. Its forward-brake-reverse switch enables easy directional changes, while its heat-dissipating design ensures reliability under load. Ideal for industrial automation and motor speed regulation, this controller combines durability with precise control for professional-grade applications.

## Description

PWM DC Motor Speed Controller, DC 10-55V / Rated 40A, LED Display Stepless DC Motor Speed Controller with Adjustable Potentiometer and Forward-Brake-Reverse Switch - desertcart.com

Review: Good goods - Works good, i using it for a trolling motor,
Review: Reduced Amerage Rating Required - We have purchased three different DC controllers for this project. The first two were from China and rated at 30 amps. They both got very hot and failed at 10 amps. We subseuently purchased this controller, which was more sophisticated and had nice remote controls and a speed or percent power indicator. This one is rated at 40 amps, whereas our application required 12 amps, so we intended to run it at about 30% or rated output. At 12 amps, this one also got hot but didnot burn out. We reduced the running amperage to 10 amps and the device did not reach a failure temperature level. We will build this unit into our product but reduce the rating to maximum of 15 amps rather than the published 40 amps. The controls and indicator are very well done.

## Features

- ♕【Technical Parameters】 Input supply voltage: DC 10V-55V; Rated current: 40A; Max current: 60A; Speed range: 0%-100% ; Apply to: DC Brush Motor
- ♕【CW/CCW Function】The switch can provide clockwise and counter clockwise rotation choice. With this latching switch, you can control the rotation direction easily.
- ♕【Excellent Heat Dissipation Performance】 The enclosure of the speed controller for motor is an aluminum enclosure. Aluminum shell is very strong to prevent damage, holes on its side and top which are helpful for heat dissipation.
- ♕【Easy to Operate】The stepless motor controller has a simple potentiometer knob adjusts the motor speed from 0% ~ 100% smoothly. LED display screen shows the motor speed from 0% to 100% of the rated speed.
- ♕【Application】 The DC motor driver can be used on brush motor speed regulation, light dimming regulation in the DC circuit. Note: The motor can not be used in electric vehicles.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | HARMNEE |
| Color | Silver |
| Display Type | LED |
| Item Weight | 0.52 Pounds |
| Material | Metal |
| Product Dimensions | 3.1"L x 4.5"W x 1.4"H |

## Product Details

- **Brand:** HARMNEE
- **Color:** Silver
- **Item Weight:** 8.32 ounces
- **Material:** Metal
- **Product Dimensions:** 3.1"L x 4.5"W x 1.4"H

## Images

![DC PWM Motor Controller——Standard - Image 1](https://m.media-amazon.com/images/I/71cG3dPGApL.jpg)

## Available Options

This product comes in different **Style** options.

## Questions & Answers

**Q: can this pulse 12v , would it be ble to pulse 12v injector for cleaning
?**
A: The voltage of your injector is between our controller voltage range (10~55V). If your injector is with a DC brush motor and the rated current is below the 60A, HARMNEE pwm motor speed controller will fit for your injector.  The rated current is equal to the rate of power divided by voltage 12V.

**Q: Why is there a 3 way switch for this?**
A: one is for turning off the motor and the other two are for forward and reverse.

**Q: Can it be used with arduino to control motor speed and direction?**
A: I can't imagine why not as long as the Arduino project meets the volt and amp capacities of the Controller.

**Q: Lemon? Two right most terminals wired to 20V battery but the voltage across the two left most terminals always 20V no matter the % of pot adjustment.**
A: unplug the pot and connect a meter to center leg and either side legs and check ohms clime as you turn the knob. Make sure all connections are correct. If pot works then controller is bad.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good goods
*by J***N on December 8, 2025*

Works good, i using it for a trolling motor,

### ⭐⭐⭐⭐⭐ Reduced Amerage Rating Required
*by E***G on July 20, 2025*

We have purchased three different DC controllers for this project. The first two were from China and rated at 30 amps. They both got very hot and failed at 10 amps. We subseuently purchased this controller, which was more sophisticated and had nice remote controls and a speed or percent power indicator. This one is rated at 40 amps, whereas our application required 12 amps, so we intended to run it at about 30% or rated output. At 12 amps, this one also got hot but didnot burn out. We reduced the running amperage to 10 amps and the device did not reach a failure temperature level. We will build this unit into our product but reduce the rating to maximum of 15 amps rather than the published 40 amps. The controls and indicator are very well done.

### ⭐ Died Immediately -- Useless -- Waste of Money
*by B***Z on August 22, 2022*

The product died right away, despite being rated for 60A. Wrong. Carefully attached the unit to a small 12V power supply and a small motor (max draw 5A at stall). Double-checked all polarities before final connection. Turned on the main switch, then the potentiometer, and -- zilch. Nothing. Nada. Checking the unit with a multimeter, it is clear that the switches all work, but something on the board is hosed. My schedule is now kaput. I really want my money back, or a working unit. Disappointed.

## Frequently Bought Together

- PWM DC Motor Speed Controller, DC 10-55V / Rated 40A / Max 60A, LED Display Stepless DC Motor Speed Controller with Adjustable Potentiometer and Forward-Brake-Reverse Switch
- Junction Box, Zulkit Project Box IP65 Waterproof Outdoor Box ABS Plastic Electrical Boxes Electronic Enclosure Black 7.9 x 4.7 x 2.95 inch (200 x 120 x 75mm)
- Haoguo Steering Triangle Compatible with Newport NK-180S Brushless Kayak Motor, Stainless Steel Structure, Anti-Rust, Easy Installation

---

## 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.com.my/products/206202711-dc-pwm-motor-controller-standard](https://www.desertcart.com.my/products/206202711-dc-pwm-motor-controller-standard)

---

*Product available on Desertcart Malaysia*
*Store origin: MY*
*Last updated: 2026-02-15*