9-60V PWM DC Motor Speed Controller | Digital Display 500W
9-60V PWM DC Motor Speed Controller | Digital Display 500W
9-60V PWM DC Motor Speed Controller with Digital Display
Take precise control of your DC motors and fans with this versatile PWM Motor Speed Controller. Featuring a clear digital display and an intuitive rotary encoder, this compact governor lets you fine-tune both duty cycle and operating frequency to perfectly match your application — from small cooling fans to larger 500W motors.
Key Features
- Wide Voltage Range: Operates on DC 9V–60V, covering a broad range of motor and fan systems.
- High Power Capacity: Rated at 12A continuous / 20A max, supporting loads up to 500W.
- Adjustable PWM Frequency: Tunable from 1 KHz to 99 KHz in 1 KHz steps (default 20 KHz, ~1% accuracy) — reduce motor whine or optimize efficiency for your specific load.
- Full Duty Cycle Control: 0–100% in 1% steps for ultra-smooth, stepless speed adjustment.
- Digital Display & Encoder: Real-time readout of duty ratio and frequency makes setup and adjustment effortless.
- Input Reverse-Polarity Protection: Built-in anti-reverse protection guards against accidental wiring mistakes.
- Compact & Mountable: Dimensions of 79mm × 43mm × 26mm with an installation hole pattern of 39.3mm × 76.5mm for easy panel mounting.
Specifications
| Working Voltage | DC 9V – 60V |
| Rated Current | 12A (max 20A) |
| Max Power | 500W |
| PWM Frequency | 1 KHz – 99 KHz (1 KHz steps, default 20 KHz, ~1% accuracy) |
| Duty Cycle | 0–100% (1% steps) |
| Product Size | 79mm × 43mm × 26mm |
| Mounting Hole Size | 39.3mm × 76.5mm |
| Input Protection | Anti-reverse polarity |
| Country of Origin | Made in China |
What's in the Box
- 1× DC Motor Speed Controller (PWM Governor)
Common Applications
- DC fan speed regulation (cooling fans, ventilation systems)
- DIY robotics and automation projects
- Electric vehicle and e-bike motor control
- Industrial conveyor and pump speed adjustment
- LED dimming and power control experiments
For guidance on electrical safety when working with DC motor circuits, refer to OSHA's Electrical Safety Standards.
Notes
- Due to lighting and screen variation, the item's color may appear slightly different from photos.
- Please allow ±1–3 cm differences due to manual measurement.
Frequently Asked Questions
Q: What voltage range does this PWM motor speed controller support?
A: This DC motor speed controller supports an input voltage range of 9V to 60V DC, making it compatible with a wide variety of battery packs, power supplies, and automotive/industrial systems.
Q: Can I use this controller to adjust fan speed as well as motor speed?
A: Yes! This PWM governor is designed for both DC motors and DC fans. The adjustable frequency (1–99 KHz) and full 0–100% duty cycle control make it ideal for smooth, silent fan speed regulation as well as motor speed control.
Q: How do I set the PWM frequency and duty cycle?
A: The rotary encoder on the controller allows you to adjust both the PWM frequency and duty cycle directly. The digital display provides real-time feedback, so you can dial in your exact settings with 1 KHz frequency steps and 1% duty cycle steps.
Q: Is there protection against reverse wiring?
A: Yes, this controller includes built-in input anti-reverse protection, which helps safeguard the unit if the power supply wires are accidentally connected in reverse polarity.