DC 9-55V PWM Motor Speed Controller 40A 2000W Brushed Motor
DC 9-55V PWM Motor Speed Controller 40A 2000W Brushed Motor
DC 9-55V PWM Motor Speed Controller — 40A 2000W Brushed Motor Regulator
Take full command of your brushed DC motor projects with this high-power PWM Motor Speed Controller. Designed for makers, engineers, and DIY enthusiasts, this compact control module delivers stepless, precise speed regulation across a wide voltage range — all through a simple potentiometer knob. Whether you're building a custom conveyor, powering an electric vehicle project, or automating workshop machinery, this module gives you reliable, efficient control from 0–100%.
Key Features
- Wide Voltage Compatibility: Accepts DC 9–55V input, making it compatible with a broad range of DC power supply setups.
- High Continuous Current: Supports up to 40A continuous output current to stably drive high-power brushed DC motors.
- 2000W Continuous Power Rating: Handles demanding, high-load motor applications with ease.
- PWM Speed Regulation at 25 kHz: High-efficiency pulse-width modulation delivers smooth, stepless speed control and improves overall motor efficiency.
- Linear Potentiometer Control: 100K potentiometer (knob spec: 148) provides intuitive, linear speed adjustment from 0–100%.
- Simple Wiring: Fence-type terminal block connections make installation straightforward — no complex configuration required.
- Compact Metal Casing: Durable enclosure with excellent heat dissipation keeps the module running cool under load.
- DIY-Friendly Design: Ideal for robotics, automation, electric carts, industrial fans, power tools, and custom motor drive projects.
Technical Specifications
| Input Voltage | DC 9–55V |
| Output Voltage | Linear under load |
| Output Current | 0–40A |
| Continuous Power | 2000W |
| Speed Regulation Type | Current regulation |
| Speed Regulation Method | Potentiometer (linear) |
| Speed Regulation Range | 0–100% |
| Control Frequency | 25 kHz |
| Wiring Type | Fence-type terminal block |
| Knob Specification | 100K (148) |
| Potentiometer Mounting Hole | 7 mm |
What's in the Box
- 1× PWM DC Motor Speed Controller Module
Notes
- Due to lighting and display differences, the item's color may appear slightly different from photos.
- Please allow 1 mm–1 cm variance due to manual measurement.
- Made in Mainland China.
Safety & Standards
For guidance on electrical safety best practices when working with DC motor control systems, refer to OSHA's Electrical Safety Standards. Always follow proper wiring procedures and ensure your power supply is correctly rated before installation.
Frequently Asked Questions
Q: What types of motors is this PWM DC motor speed controller compatible with?
A: This controller is designed specifically for brushed DC motors. It supports any brushed motor operating within the DC 9–55V input range and up to 40A continuous current draw. It is not intended for brushless motors or AC motors.
Q: Can I use this speed controller for a 12V or 24V motor system?
A: Yes — because the input voltage range spans DC 9V to 55V, this module works seamlessly with common 12V, 24V, 36V, and 48V motor systems, making it highly versatile for automotive, industrial, and hobby applications.
Q: Does this module require any programming or complex configuration?
A: No programming is needed. Speed is adjusted simply by turning the linear potentiometer knob. The fence-type terminal block makes wiring quick and clear, so you can get up and running with minimal effort — perfect for DIY builds and prototyping.
Q: How does the heat dissipation work on this controller?
A: The compact metal casing is engineered to conduct and dissipate heat effectively during operation. For extended high-load use, it is recommended to mount the module to a surface with good airflow or add an external heatsink for additional thermal management.