DC9‑60V 20A PWM DC Motor Speed Controller Forward Reverse Switch Regulator Governor For Brushed DC Motor Speed Adjustment Industrial DIY Project

DC 9‑60V 20A PWM DC Motor Speed Controller

📌 Product Overview

This is a high‑power PWM DC motor speed controller, available in two versions: without forward‑reverse switch and with forward‑reverse switch. It supports DC 9‑60V wide‑voltage input, max 20A output current, continuous power up to 1200W. Adopting 25KHz high‑frequency PWM regulation, it realizes smooth 0‑100% stepless speed adjustment via external potentiometer. The aluminum alloy housing provides excellent heat dissipation performance for stable long‑time operation. The forward‑reverse version adds a rocker switch to control motor rotation direction conveniently. Suitable for various brushed DC motor speed control projects.

✨ Key Features

✅ Wide input voltage: DC 9‑60V, match different brushed DC motors ✅ Max output current: 20A, continuous working current within 18A ✅ High‑frequency 25KHz PWM drive, smooth stepless speed 0‑100% ✅ Aluminum alloy shell, good heat dissipation, mounting holes for easy installation ✅ Two optional versions: standard version / with forward‑reverse switch ✅ Linear load output, adjust speed by external potentiometer ✅ Compact size, simple wiring, easy for DIY and industrial retrofit

📋 Product Specifications

Item	Parameter
Input Voltage	DC 9‑60V
Max Output Current	20A
Continuous Power	1200W
PWM Frequency	25KHz
Speed Adjustment Range	0‑100%
Control Mode	Potentiometer stepless speed regulation
Version Option	Without forward‑reverse switch / With forward‑reverse switch
Dimension	92mm × 52mm × 36mm
Net Weight	130g(no switch) / 155g(with switch)
Mounting Hole Center Distance	104mm
Potentiometer Mounting Hole	7mm
Working Temperature	-40℃ ~ +85℃

⚠ Important Usage Notice

1. This controller is only for brushed DC motors, NOT for brushless DC motors. Cannot be used as voltage regulator or stabilizer.
2. Must connect DC power supply, DO NOT connect to household 220V AC directly, damage caused by wrong connection is at user’s own risk.
3. Input voltage shall be equal to motor rated voltage. Input current must be higher than motor working current.
4. Cannot test output voltage without connecting motor; multimeter will show no voltage change under no‑load status.
5. Motor wiring has no polarity. Swap blue and green wires if you need to reverse rotation direction.
6. Not applicable for electric vehicle motors. Red wire = power positive, black wire = power negative. Kind reminder: If there are version differences or images have not been updated, please refer to the actual product. Thank you!

🛠 Application Scenarios

🔧 DIY DC motor speed control 🔧 Small machinery equipment modification 🔧 Conveyor belt, fan, pump speed adjustment 🔧 Robot, model, automation equipment renovation