---
product_id: 475121947
title: "PWM Soft Start/Soft Stop Variable Speed DC Motor Speed Controller Recoverable Overcurrent Protection PWM Switch Control 9-70V 35A"
brand: "mgcstem"
price: "£24.90"
currency: GBP
in_stock: true
reviews_count: 10
category: "Mgc Stem"
url: https://www.desertcart.co.uk/products/475121947-pwm-soft-start-soft-stop-variable-speed-dc-motor-speed
store_origin: GB
region: United Kingdom
---

# 35A Peak Current 0-100% Duty Cycle Aluminum Alloy Shell PWM Soft Start/Soft Stop Variable Speed DC Motor Speed Controller Recoverable Overcurrent Protection PWM Switch Control 9-70V 35A

**Brand:** mgcstem
**Price:** £24.90
**Availability:** ✅ In Stock

## Summary

> 🚀 Elevate Your Ride with Precision Control!

## Quick Answers

- **What is this?** PWM Soft Start/Soft Stop Variable Speed DC Motor Speed Controller Recoverable Overcurrent Protection PWM Switch Control 9-70V 35A by mgcstem
- **How much does it cost?** £24.90 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/475121947-pwm-soft-start-soft-stop-variable-speed-dc-motor-speed)

## Best For

- mgcstem enthusiasts

## Why This Product

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

## Key Features

- • **Safety First:** Soft start/stop technology minimizes inrush current, ensuring a safer ride for your little ones.
- • **Durable Design:** Crafted from robust aluminum, this controller is built to withstand the rigors of play.
- • **Easy Installation:** Mount it directly with screws—no extra accessories needed for a hassle-free setup.
- • **Smooth Speed Control:** Effortlessly adjust your motor's speed with variable pedals for a tailored experience.
- • **Automatic Overcurrent Protection:** Never worry about fuses again! This controller automatically adjusts to prevent damage.

## Overview

The PWM Soft Start/Soft Stop Variable Speed DC Motor Speed Controller is designed for optimal performance and safety in electric vehicles. With features like variable speed control, automatic overcurrent protection, and a durable aluminum shell, it ensures a smooth and secure driving experience for children. Its easy installation and robust design make it a must-have for any power wheels upgrade.

## Description

Low Voltage Protection It can meet all your various needs and bring you convenience and fun as much as possible. Low Voltage Protection Adapter Low Voltage Disconnect and PWM The PWM Module Kit Our company integrates industry and trade, has product development and design capabilities. All pwm related products we sell are designed and produced by our company.

Review: Great Product. Great customer service - Works amazing. I used in conjunction with the variable speed pedal, and I have now purchased 4 of these for my kids power wheels and plan on purchasing more as they get more. They have been working flawlessly and my kids love them as its a great teaching tool for driving because they can drive fast or slow with pedal control just like a real car. I purchased a brake pedal from them and the wire was bad out of the box and it blew out one of my units and they replaced everything for me. Much appreciated. Easy to wire following their instructions.
Review: Broke after 1 month... - Knob component came loose after 1 month of use rendering it useless, worked great before that. I have not heard from seller, or option to get a hold of company for replacement.

## Features

- 【variable speed pedals support】This dc motor speed controller supports variable speed control pedals, and also supports maximum speed settings in this mode to set the maximum safe speed your child needs;
- 【Soft Start/Soft Stop Support】This power wheels speed controller reduce the impact of inrush current when starting and stopping suddenly, prolong the life of the motor and gear, and enhance the safety of children when upgrading children's electric vehicles;
- 【Max 35A Peak Current Automatic Overcurrent Protection】 when the peak current of this speed controller for electric motor exceeds 35A or continuous current exceeds 20A, The PWM will be automatically reduced to maintain the output continuous current of 20A. When the current is reduced, it will automatically recover. Fuse will never need to be replaced;
- 【Mounting Holes】This dc motor controller can be installed directly using screws without external mounting positioning accessories.
- This variable speed controller have 0~100% duty cycle adjustment. 16.23khz frequency. 9-90V input voltage support, have working indication,Aluminum alloy shell. Stronger and more durable. Can bu used in power wheels replacement parts,pwm fan controller,power wheels replacement parts

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BDYQCB79 |
| Best Sellers Rank | #37,198 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #11 in Motor Speed Controllers |
| Brand | MgcSTEM |
| Brand Name | MgcSTEM |
| Color | Silver |
| Customer Reviews | 3.8 out of 5 stars 82 Reviews |
| Included Components | 1 x DC Motor Speed Controller, 1 x Product Manual, |
| Item Dimensions L x W x H | 8.33"L x 2"W x 1.53"H |
| Item Weight | 0.17 Kilograms |
| Manufacturer | MgcSTEM |
| Material | Aluminum |
| Material Type | Aluminum |
| Model | PW-M03-001 |
| Operating Temperature | 20 Degrees Celsius |
| Part Number | PW-M03-001 |
| Product Dimensions | 8.33"L x 2"W x 1.53"H |

## Product Details

- **Color:** Silver
- **Brand:** MgcSTEM
- **Voltage:** 9E+1 Volts (DC)
- **Product Dimensions:** 8.33"L x 2"W x 1.53"H
- **Material:** Aluminum

## Images

![PWM Soft Start/Soft Stop Variable Speed DC Motor Speed Controller Recoverable Overcurrent Protection PWM Switch Control 9-70V 35A - Image 1](https://m.media-amazon.com/images/I/71IiG0hOqpL.jpg)
![PWM Soft Start/Soft Stop Variable Speed DC Motor Speed Controller Recoverable Overcurrent Protection PWM Switch Control 9-70V 35A - Image 2](https://m.media-amazon.com/images/I/717DoXFA39L.jpg)
![PWM Soft Start/Soft Stop Variable Speed DC Motor Speed Controller Recoverable Overcurrent Protection PWM Switch Control 9-70V 35A - Image 3](https://m.media-amazon.com/images/I/81iN9CNFnZL.jpg)
![PWM Soft Start/Soft Stop Variable Speed DC Motor Speed Controller Recoverable Overcurrent Protection PWM Switch Control 9-70V 35A - Image 4](https://m.media-amazon.com/images/I/71yKElp7T+L.jpg)
![PWM Soft Start/Soft Stop Variable Speed DC Motor Speed Controller Recoverable Overcurrent Protection PWM Switch Control 9-70V 35A - Image 5](https://m.media-amazon.com/images/I/615F1jqZLqL.jpg)

## Available Options

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

## Questions & Answers

**Q: Is there an equation for the capacitor value to determine soft start time? I want to make it very small as 3 sec is too long.**
A: Hello, the calculated value is usually inaccurate, because the resistance and capacitance have errors, only by experiment. Reducing the value of C13 and C15 can reduce the softstart time. At present, they are all 10uF, you can change them to 5uF, and the withstand voltage is above 10V. At the same time, you can also try the 2.0B module, the softsart time of the 2.0B module can be adjusted through button configuration. The adjustment range is 0~30s, and the step is 0.1s.

**Q: Where an I download the instructions?  I've misplaced the one that came with the controller.**
A: Hello, please contact me via amazon message or email, I will send you a copy

**Q: I'm trying to install this on a power wheels hurricane which has a 2 speed forward and 1 speed reverse. will it work with the variable pedal?**
A: Hello, you can achieve one forward and one backward, refer to the answer video in the link: https://www.amazon.com/ask/questions/Tx24I1TKJW7JPHH/ref=ask_dp_dpmw_al_hza.
        When you use the variable speed pedal, the speed is controlled by the variable speed pedal, and the control range is 0~100%. So the device with two gears is meaningless and can be removed

**Q: Can this be used with 2 20v dewalt batteries in series with 2 775 motors with the pwm duty cycle down to 24v?**
A: Hello, the voltage range of the pwm module is very wide. The voltage of 20V Dewei batteries connected in series is 40V, and the working voltage of 40V is still within the normal working voltage range of pwm. But the pwm module only adjusts the duty cycle, and the output voltage is still 40V, so you need to confirm the working voltage range of your 755 motor. Generally, the allowable voltage range of 24V type 755 DC motor is 12~30V. 40V is a bit high, please check with the 755 motor supplier for details. If your motor is also connected in series, then yes, but if your motor and battery are connected in series, it seems pointless to do so? It is recommended to connect two Dewei batteries in parallel, and then connect the two motors in parallel.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great Product. Great customer service
*by D***S on July 19, 2024*

Works amazing. I used in conjunction with the variable speed pedal, and I have now purchased 4 of these for my kids power wheels and plan on purchasing more as they get more. They have been working flawlessly and my kids love them as its a great teaching tool for driving because they can drive fast or slow with pedal control just like a real car. I purchased a brake pedal from them and the wire was bad out of the box and it blew out one of my units and they replaced everything for me. Much appreciated. Easy to wire following their instructions.

### ⭐ Broke after 1 month...
*by T***. on February 4, 2026*

Knob component came loose after 1 month of use rendering it useless, worked great before that. I have not heard from seller, or option to get a hold of company for replacement.

### ⭐⭐⭐⭐⭐ Excellent customer service, stands by their product
*by A***N on January 7, 2026*

If i could i would give them a 10 star review. Excellent customer service, a company eho stands by their product and is there to help you when problems arise. I had bought this for my sons jeep i converted, back in July but procrastination, my worst enemy delayed me from hooking it up. Once i did the conversion without the module the jeeps front wheels lifted off the ground when he hit the gas, scared the crap out of him. So i orders this dc speed controller, after 6 months of pushing off installing it i just got around to tinkering with the jeep few days ago, and had to get er all wired in and encountered i wasnt getting no power out of the module, had power supply going in but received no output, i messaged the seller and they were very fast at responding and sending me tips and troubleshooting steps, i tried and come to find out the pentiometer was disconnected from the pcb board, well the seller quickly apologized and sent me a new module the next day. I had the version 1.0 they have a more durable looking version thats more user friendly 2.0 version with digital display eyere it doesn't look like the pentiometer has any way it can be accidentally bent back or whatever it was that caused my original module to not function correctly, thing about it is it probably might have been disconnected due to my handling, so i cant tell you the performance of the product but i can tell you its a excellent company who isnt going to ignore you when product isnt right they will make sure your satisfied.

## Frequently Bought Together

- PWM Soft Start/Soft Stop Variable Speed DC Motor Speed Controller Recoverable Overcurrent Protection PWM Switch Control 9-70V 35A
- MgcSTEM Accelerator Pedal Switch Electric Pedal Foot Switch Accessory for Kids Cars Children Electric Ride on Toys Replacement Parts Connectors（PWM 2.0A/2.0B Soft Start/Soft Stop Pedal）

---

## 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.co.uk/products/475121947-pwm-soft-start-soft-stop-variable-speed-dc-motor-speed](https://www.desertcart.co.uk/products/475121947-pwm-soft-start-soft-stop-variable-speed-dc-motor-speed)

---

*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-05-21*