---
product_id: 542876001
title: "PWM Motor Controller——New Max"
brand: "harmnee"
price: "NT$4145"
currency: TWD
in_stock: null
reviews_count: 8
category: "Harmnee"
url: https://www.desertcart.tw/products/542876001-pwm-motor-controller-new-max
store_origin: TW
region: Taiwan
---

# DC 10V-50V input voltage Built-in cooling fan for heat dissipation Max 100A current handling PWM Motor Controller——New Max

**Brand:** harmnee
**Price:** NT$4145
**Availability:** ❌ Out of Stock

## Summary

> ⚙️ Master your motor’s speed and direction with industrial-grade precision!

## Quick Answers

- **What is this?** PWM Motor Controller——New Max by harmnee
- **How much does it cost?** NT$4145 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.tw](https://www.desertcart.tw/products/542876001-pwm-motor-controller-new-max)

## 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

- • **Built-in Safety:** Integrated fuse protects your investment from current surges
- • **Powerhouse Performance:** Handles up to 100A max current for demanding motor control
- • **Directional Flexibility:** Easy CW/CCW switch for seamless forward and reverse operation
- • **Precision Speed Control:** Smooth 0-100% speed range for ultimate customization
- • **Stay Cool Under Pressure:** Notebook-grade cooling fan ensures reliable, steady performance

## Overview

The DC PWM Motor Controller—New Max is an industrial-grade speed controller designed for DC brush motors, supporting input voltages from 10V to 50V and currents up to 100A. Featuring a professional cooling fan for effective heat dissipation, a convenient CW/CCW rotation switch, secure ring terminal connections, and a built-in safety fuse, it delivers reliable, customizable motor control ideal for demanding applications.

## Description

Industrial Grade PWM DC Motor Speed Controller, DC 10V-50V / Rated 60A / Max 100A Industrial Grade DC Brush Motor Controller with Fuse & CW/CCW Switch & Potentiometer Knob: desertcart.com: Industrial & Scientific

Review: Excellent PWM for controlling a trolling motor - I used this PWM to build an speed controller for my Minn Kota Endura C2 40 trolling motor which I mounted to my kayak. It works like a champ! Forward. Reverse. 0-100% The speed control does exactly what it's supposed to do. I had this thing out on the water several times over this past summer and run it full bore for several minutes at a time. According to my LiFePO4 battery app, the motor is pulling around 39A through this box. Most of the time I'm cruising around between 5-25A. It probably has 30 - 40 hours on it at this point. I've watched a number of videos of people using controllers like this and have seen references to them burning up. At the same time I'm watching these people put them in sealed boxes. Frankly, there's some unrealistic expectations there. If it's got a heat sink on it, you probably don't want to seal it in a box. If it has a fan on the heat sink, that's a clue that it needs to dissipate heat, WHICH IT CAN'T EASILY DO IN A SEALED BOX. For my build, I wanted to make the box drip proof and resistant to small splashes, but not submersible. I put it in a vented box and ran an auxiliary fan the the same wiring has the heat sink fan (see pictures). I also extended the wiring for the dial and switch to an external control box that I could hold in my hand. I couldn't be happier with the results. The only negative I see to this PWM (and this is minor) is the fuse which is just a little strip of metal held between two pins. It comes with a spare, but not losing the spare could be a challenge and finding a suitable replacement some years down the road might be a challenge.
Review: Causes motors to spin as soon as the switch is turned on - This is set up in a power wheels Dune Racer, and as soon as you push the switch on, the motors move without even pushing the petal. Big Safety hazard. I’ll have to figure it why it sends voltage to the motors right away but it’s not something i expected to need to do. Update: it’s looking like it’s a faulty unit. It should not be putting out any voltage without any kind of input.

## Features

- ♕【Technical Parameter】Input voltage: DC 10V-50V; Rated current: 60A; Max current:100A; Speed range: 0%-100%; Apply to: DC brush motor
- ♕【Cooling Fan】Professional cooling fan is with same quality as that on notebook computer. Effective heat dissipation ensures the controller’s safe and steady work
- ♕【CW/CCW Switch】The switch can provide clockwise and counter clockwise rotation choice. With this latching switch, you can control the rotation direction easily
- ♕【Ring Terminals】 Plays an good role between motor and controller connection. Make motor wiring and power wiring connect to the controller more securely
- ♕【Safety Fuse】The controller is with a number 8 shape fuse on circuit board. It helps prevent the controller from damaging by excessive current. You can replace it with spare fuse if original fuse blows

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0C5PQBM4P |
| Batteries required | Yes |
| Best Sellers Rank | #77,756 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #44 in Motor Speed Controllers |
| Customer Reviews | 3.7 3.7 out of 5 stars (41) |
| Included Components | Potentiometer |
| Item Weight | 1.17 pounds |
| Manufacturer | HARMNEE |
| Product Dimensions | 5.7 x 3.1 x 1.5 inches |

## Product Details

- **Brand:** HARMNEE
- **Color:** silver
- **Display Type:** LED
- **Material:** Copper
- **Product Dimensions:** 5.7"L x 3.1"W x 1.5"H

## Images

![PWM Motor Controller——New Max - Image 1](https://m.media-amazon.com/images/I/71T1vt+ITNL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent PWM for controlling a trolling motor
*by M***3 on November 13, 2025*

I used this PWM to build an speed controller for my Minn Kota Endura C2 40 trolling motor which I mounted to my kayak. It works like a champ! Forward. Reverse. 0-100% The speed control does exactly what it's supposed to do. I had this thing out on the water several times over this past summer and run it full bore for several minutes at a time. According to my LiFePO4 battery app, the motor is pulling around 39A through this box. Most of the time I'm cruising around between 5-25A. It probably has 30 - 40 hours on it at this point. I've watched a number of videos of people using controllers like this and have seen references to them burning up. At the same time I'm watching these people put them in sealed boxes. Frankly, there's some unrealistic expectations there. If it's got a heat sink on it, you probably don't want to seal it in a box. If it has a fan on the heat sink, that's a clue that it needs to dissipate heat, WHICH IT CAN'T EASILY DO IN A SEALED BOX. For my build, I wanted to make the box drip proof and resistant to small splashes, but not submersible. I put it in a vented box and ran an auxiliary fan the the same wiring has the heat sink fan (see pictures). I also extended the wiring for the dial and switch to an external control box that I could hold in my hand. I couldn't be happier with the results. The only negative I see to this PWM (and this is minor) is the fuse which is just a little strip of metal held between two pins. It comes with a spare, but not losing the spare could be a challenge and finding a suitable replacement some years down the road might be a challenge.

### ⭐ Causes motors to spin as soon as the switch is turned on
*by J***N on June 26, 2024*

This is set up in a power wheels Dune Racer, and as soon as you push the switch on, the motors move without even pushing the petal. Big Safety hazard. I’ll have to figure it why it sends voltage to the motors right away but it’s not something i expected to need to do. Update: it’s looking like it’s a faulty unit. It should not be putting out any voltage without any kind of input.

### ⭐⭐⭐⭐⭐ Great customer support
*by J***H on March 1, 2024*

The controller didn't reverse the motor on first start up. Had to contact HARMNEE customer service. Update #1 Company did respond and sent out another unit promptly. However, the replacement unit was the not correct one. I received the much less expensive version they sell for $29.99. I have contacted the company to try to get the exact model I purchased. I'll update again after I receive the correct unit. Update #2: I was able to fix the relay that was not closing on the Normally Closed position. I told the company representative the issue was solved and no need to send out another unit. If you have an issue, contact customer support.

## Frequently Bought Together

- Industrial Grade PWM DC Motor Speed Controller, DC 10V-50V / Rated 60A / Max 100A Industrial Grade DC Brush Motor Controller with Fuse & CW/CCW Switch & Potentiometer Knob
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*Product available on Desertcart Taiwan*
*Store origin: TW*
*Last updated: 2026-03-19*