PWM DC Motor Speed Controller 12V-80V 30A Digital Display
PWM DC Motor Speed Controller 12V-80V 30A Digital Display
PWM DC Motor Speed Controller with Digital Display — 12V to 80V, 30A Max
Take precise control of your DC motor applications with this high-power PWM Motor Speed Controller. Featuring a clear digital display, smooth slow-start and slow-stop functionality, and a wide voltage range of DC 12V to 80V, this governor is engineered for reliability and versatility across a broad range of projects — from DIY builds to industrial setups.
Key Features
- Wide Voltage Range: Compatible with DC 12V to 80V power supplies for maximum flexibility.
- High Current Capacity: Handles up to 30A maximum current for demanding motor loads.
- Full Speed Range: Precise speed adjustment from 0% to 100% for total control.
- 21 kHz PWM Frequency: High-frequency pulse-width modulation for smooth, efficient motor operation with minimal noise.
- Digital Display: Easy-to-read display lets you monitor and set speed at a glance.
- Slow Start & Slow Stop: Built-in soft start/stop function protects motors and connected equipment from abrupt current surges.
- Dimmer Switch Function: Also usable as a DC dimmer for LED lighting and other resistive loads.
Technical Specifications
| Input Voltage | DC 12V – 80V |
| Maximum Current | 30A |
| Speed Range | 0 – 100% |
| PWM Frequency | 21 kHz |
| Recommended Power | 12V/250W · 24V/300W · 48V/500W |
| Motor Type | DC Motor |
What's in the Box
- 1× Motor Governor Unit
- 1× Digital Display Controller
Notes
- Colors may vary slightly due to screen and lighting differences.
- Please allow a 1mm–1cm tolerance due to manual measurement.
Made in Mainland China.
For more information on electrical safety standards for motor control equipment, visit the OSHA Electrical Safety Guidelines.
Frequently Asked Questions
Q: What types of DC motors is this PWM speed controller compatible with?
A: This controller works with a wide range of brushed DC motors operating between 12V and 80V. It is ideal for motors used in fans, conveyors, pumps, electric vehicles, DIY projects, and more — as long as the current draw does not exceed 30A.
Q: What does the slow-start and slow-stop function do?
A: The slow-start and slow-stop (soft start/stop) feature gradually ramps motor speed up or down instead of switching abruptly. This protects both the motor windings and connected mechanical components from sudden current surges, extending the lifespan of your equipment.
Q: Can I use this controller as a dimmer switch for LED lights?
A: Yes. Because it operates on PWM (pulse-width modulation) principles, it can also function as a DC dimmer switch for compatible LED lighting and other resistive DC loads within its voltage and current ratings.
Q: What is the PWM frequency of this motor speed controller?
A: The controller operates at a 21 kHz PWM frequency, which is above the audible range for most applications, resulting in quieter and smoother motor operation compared to lower-frequency controllers.