PWM DC Motor Speed Controller 2A 3A 5A 10A with On/Off Switch

PWM DC Motor Speed Controller – 2A, 3A, 5A & 10A with Control Switch

Take precise command of your DC motor-driven projects with this compact PWM (Pulse Width Modulation) DC Motor Speed Controller. Available in multiple current ratings — 2A, 3A, 5A, and 10A — this versatile module lets you smoothly adjust motor speed from near-zero up to full power using a simple rotary knob, plus a built-in on/off switch for added convenience. Ideal for hobbyists, makers, and DIY electronics enthusiasts.

Key Features

• Multiple Current Ratings: Choose from 2A, 3A, 5A, or 10A to match your motor's requirements
• PWM Speed Control: Smooth, stepless speed adjustment via pulse width modulation for efficient motor management
• Built-in On/Off Switch: Conveniently start or stop your motor without disconnecting power
• Compact & Easy to Wire: Straightforward screw-terminal connections — ready to integrate into your project in minutes
• Wide Compatibility: Works with a broad range of brushed DC motors used in fans, pumps, conveyors, robotics, and more
• Efficient Design: Low heat generation at rated loads for reliable long-term operation
• 6 Color Options: Select the color that suits your build or enclosure aesthetic

Specifications

• Control Method: PWM (Pulse Width Modulation)
• Available Current Ratings: 2A / 3A / 5A / 10A
• Switch Function: Yes, built-in on/off
• Motor Type Compatibility: Brushed DC motors
• Connection Type: Screw terminals

Common Applications

• DIY electronics and robotics projects
• Fan speed control for cooling systems
• Small pump or conveyor speed adjustment
• Arduino, Raspberry Pi, and other maker platform integrations
• 3D printer motor control and automation builds

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Frequently Asked Questions

Q: What does a PWM DC Motor Speed Controller do?

A: A PWM (Pulse Width Modulation) DC Motor Speed Controller regulates the speed of a brushed DC motor by rapidly switching the power supply on and off at varying duty cycles. This allows smooth, efficient speed adjustment from near-zero to full speed, all without significant energy loss as heat — making it ideal for fans, pumps, robotics, and other DC motor applications.

Q: How do I choose the right current rating — 2A, 3A, 5A, or 10A?

A: Choose a current rating that meets or exceeds your motor's maximum operating current. Check your motor's datasheet or label for its rated current draw. For safety and longevity, selecting a controller with a rating slightly above your motor's peak current is recommended — for example, use a 5A controller for a motor that draws up to 4A.

Q: Is this PWM speed controller compatible with Arduino or Raspberry Pi?

A: This module is a standalone PWM speed controller with a manual rotary knob and on/off switch — it does not require a microcontroller to operate. However, it can be integrated alongside Arduino or Raspberry Pi projects as part of a larger circuit for motor-driven applications.

Q: What types of motors work with this speed controller?

A: This controller is designed for brushed DC motors. It is not suitable for brushless DC motors, AC motors, or stepper motors. Always verify your motor type before connecting to the controller.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.