4000W 80A DC Motor Speed Controller Digital Display 10V-36V
4000W 80A DC Motor Speed Controller Digital Display 10V-36V
4000W Industrial-Grade DC Motor Speed Controller — Precision Power at Your Fingertips
Take full command of your DC motor applications with this heavy-duty 4000W / 80A Motor Governor. Engineered for industrial and high-demand environments, this digital-display speed controller delivers smooth, stepless speed regulation across a wide voltage range of DC 10V–36V. Whether you're managing conveyor systems, power tools, pumps, or custom automation rigs, this unit gives you reliable, precise control with built-in current-limiting protection to keep your equipment safe.
Made in Mainland China.
Key Features
- High Power Output: Rated at 4000W with up to 80A peak current — handles demanding industrial loads with ease.
- Wide Voltage Range: Compatible with DC 10V–36V input for versatile application across different power systems.
- Digital Display: Clear, easy-to-read digital readout for real-time monitoring of speed settings.
- Smooth Linear Speed Control: 270° potentiometer provides precise, stepless adjustment from 0–100% speed range.
- Built-In Current-Limiting Protection: Automatic 80A current cutoff protects your motor and controller from overload damage.
- Ultra-Low Static Current: Only 0.01mA static draw — virtually zero standby power consumption.
- Durable Construction: Rugged rubber and hard-shell housing measures 135mm × 1068mm × 60mm for secure industrial mounting.
Technical Specifications
| Input Voltage | DC 10V – 36V |
| Output Voltage | Linear under load |
| Continuous Current | Within 70A / Max 80A |
| Rated Power | 4000W |
| Static Current | 0.01mA |
| Speed Regulation Type | Current Adjustment |
| Speed Regulation Mode | Linear Potentiometer (270°) |
| Speed Range | 0–100% |
| Current-Limiting Protection | 80A |
| Shell Size | 135mm × 1068mm × 60mm |
What's in the Box
- 1× DC Motor Governor / Speed Controller
Important Notes
- Due to lighting and display differences, actual product color may vary slightly from images.
- Please allow 1mm–1cm dimensional variance due to manual measurement.
- Ensure your power supply input current exceeds the rated working current of your motor before connecting.
For guidance on electrical safety standards for industrial motor controllers, refer to OSHA Electrical Safety Standards.
Frequently Asked Questions
Q: What types of DC motors is this speed controller compatible with?
A: This 4000W DC motor governor is compatible with most brushed DC motors operating within the DC 10V–36V input voltage range. It is ideal for motors used in industrial machinery, conveyor belts, power tools, water pumps, and custom automation setups, provided the motor's operating current does not exceed 80A.
Q: How does the current-limiting protection on this controller work?
A: The built-in current-limiting circuit automatically restricts output current to a maximum of 80A. If the load demands more than this threshold, the controller will limit current to protect both itself and the connected motor from overload or damage — making it a safe choice for high-demand industrial environments.
Q: What does "linear potentiometer 270°" mean for speed control?
A: The 270° linear potentiometer means the control knob sweeps through a 270-degree arc, giving you very fine, smooth, and precise stepless speed adjustment from 0% to 100%. This wide sweep angle provides better resolution and control compared to shorter-arc potentiometers, making it easier to dial in exact speed settings.
Q: Do I need a specific power supply for this motor governor?
A: Yes — your DC power supply must provide an input voltage between 10V and 36V, and its current capacity must be greater than the rated working current of the motor you intend to control. Undersizing your power supply can result in poor performance or damage to the controller.