9-60V DC Motor Speed Controller 20A PWM Forward & Reverse
9-60V DC Motor Speed Controller 20A PWM Forward & Reverse
9–60V DC Motor Speed Controller — 20A, 25KHz PWM with Forward & Reverse Control
Take precise command of your DC motor projects with this robust PWM Motor Speed Controller. Designed for a wide operating voltage range of 9V to 60V DC and capable of handling up to 20A of output current, this metal-bodied governor is built for demanding workshop, automation, and DIY electronics applications. The smooth rotary potentiometer lets you dial motor speed anywhere from 0 to 100%, while the built-in forward and reverse switch gives you full directional control — all in a compact, mountable enclosure. Made in Mainland China.
Key Features
- Wide Voltage Range: Compatible with DC 9V–60V power supplies — works with a broad range of motors and battery setups.
- High Current Capacity: Supports 0–20A output current for driving powerful motors with ease.
- 25KHz PWM Control Frequency: High-frequency pulse-width modulation ensures smooth, quiet, and efficient speed regulation.
- Full Speed Range: Linear potentiometer adjusts motor speed from 0% to 100% with consistent, predictable response.
- Forward & Reverse Control: Built-in directional switch allows you to instantly reverse motor rotation without rewiring.
- Durable Metal Construction: Silver-finish metal housing provides excellent heat dissipation and long-term reliability.
- Easy Mounting: Pre-drilled fixing holes with a 105mm center distance and a 7mm potentiometer mounting hole for straightforward panel installation.
Technical Specifications
| Operating Voltage | DC 9V – 60V |
| Output Current | 0 – 20A |
| Control Frequency | 25 KHz |
| Speed Range | 0 – 100% |
| Speed Regulation Mode | Potentiometer (Linear) |
| Output Voltage | Linear under load |
| Direction Control | Forward & Reverse |
| Module Size | 92 × 52 × 36 mm |
| Potentiometer Mounting Hole | 7 mm |
| Rear Fixing Hole Center Distance | 105 mm |
| Material | Metal (Silver) |
| Country of Origin | Made in Mainland China |
What's in the Box?
- 1× DC Motor Speed Controller
Please Note
- Actual color may vary slightly from images due to screen settings and lighting conditions.
- Please allow ±1–3 cm variance due to manual measurement.
Useful Reference
For best practices on electrical safety when working with DC motor control circuits, visit the OSHA Electrical Safety Guidelines.
Frequently Asked Questions
Q: What types of DC motors is this PWM speed controller compatible with?
A: This PWM motor speed controller is compatible with most brushed DC motors operating within the 9V–60V range and drawing up to 20A. It is ideal for use in DIY electronics, CNC machines, conveyor systems, fans, pumps, and other variable-speed motor applications.
Q: Can this controller run a motor in both forward and reverse directions?
A: Yes. The controller features a built-in forward and reverse switch, allowing you to change the motor's direction of rotation instantly without any rewiring. Simply toggle the switch to reverse the motor's direction.
Q: How do I adjust the motor speed with this controller?
A: Motor speed is adjusted using the on-board rotary potentiometer, which provides linear speed control from 0% to 100%. The 25KHz PWM frequency ensures smooth, stable operation across the full speed range with minimal noise or vibration.
Q: Is this speed controller suitable for high-power motors?
A: Yes, with a maximum output current of 20A and a voltage range up to 60V DC, this controller can handle substantial motor loads. For applications near or at the maximum rating, ensure adequate ventilation and consider using a heatsink to maintain optimal performance.