DC Motor Speed Controller 12–30V 3A Forward Reverse + Potentiometer
DC Motor Speed Controller 12–30V 3A Forward Reverse + Potentiometer
DC Motor Speed Controller — Full Bidirectional Control at Your Fingertips
Take precise command of your DC motor projects with this compact and capable DC 12V–30V 3A Motor Speed Controller. Whether you're building automation equipment, DIY machinery, conveyor systems, or hobby electronics, this controller delivers smooth, stepless speed adjustment from 0% to 100% — plus intuitive forward and reverse direction control — all through a sturdy rocker potentiometer.
Made in Mainland China.
Key Features
- Wide Voltage Compatibility: Operates on DC 12V to 30V, suitable for a broad range of DC motor applications.
- Bidirectional Motor Control: Easily switch between forward and reverse rotation for full operational flexibility.
- Stepless Speed Adjustment: Full 0%–100% speed range via the integrated rocker potentiometer — no jumpy increments, just smooth control.
- Built-In Overcurrent Protection: Equipped with a Hall current detection chip that automatically stops output when instantaneous peak current exceeds 6.4A, protecting both the controller and your motor.
- Compact Form Factor: Measures just 75mm × 44mm × 23mm — easy to integrate into tight enclosures or project builds.
- Rated Current 3A / Max 6A: Handles up to 50W at 12V and up to 100W at 24V, covering a wide range of small-to-medium DC motors.
Specifications
| Input Voltage | DC 12V – 30V |
| Rated Current | 3A |
| Maximum Current | 6A (with Hall current detection overcurrent protection at >6.4A) |
| Applicable Power | 12V / within 50W | 24V / within 100W |
| Speed Range | 0% – 100% (stepless) |
| Control Type | Rocker Potentiometer |
| Dimensions | 75mm × 44mm × 23mm |
| Origin | Mainland China |
What's in the Box?
- 1× DC Motor Speed Controller
Important Notes
- Colors may vary slightly from product images due to monitor/screen settings and lighting conditions.
- Please allow ±1–3 cm dimensional tolerance due to manual measurement.
Learn More About Motor Control & Electrical Safety
For guidance on safe wiring practices and electrical component handling, visit the OSHA Electrical Safety resource.
Frequently Asked Questions
Q: What types of DC motors are compatible with this speed controller?
A: This DC motor speed controller is compatible with brushed DC motors operating within DC 12V–30V. It supports motors rated up to 50W at 12V and up to 100W at 24V, with a rated continuous current of 3A and a maximum peak of 6A before overcurrent protection activates.
Q: Can I use this controller to run a motor in both directions?
A: Yes! The controller features a built-in forward and reverse function, allowing you to switch motor rotation direction conveniently. This makes it ideal for applications like automated gates, conveyor belts, robotic arms, and other bidirectional motor setups.
Q: Is there overcurrent protection built into this DC motor speed controller?
A: Absolutely. The controller includes a Hall current detection chip that monitors output current in real time. If the instantaneous peak current exceeds 6.4A, the controller automatically shuts off output to protect both the module and the connected motor from damage.
Q: How do I adjust the motor speed using this controller?
A: Speed is adjusted via the integrated rocker potentiometer, providing smooth, stepless control from 0% (fully stopped) to 100% (full speed). No additional external components are required for basic speed control operation.