12V–48V PWM DC Motor Speed Controller with SoftStart & Reverse

VIBE 12V–48V SoftStart Reversible PWM Motor Speed Controller

Take precise control of your DC motor projects with this compact yet powerful PWM (Pulse Width Modulation) speed controller. Designed for a wide voltage range of 9–60V (nominally 12V, 24V, 36V, and 48V), it handles up to 400W and 16A continuous current — making it ideal for electric vehicles, DIY machines, conveyor systems, fans, pumps, and workshop equipment.

The built-in soft-start function ensures your motor ramps up gradually, protecting both the motor and your circuit from inrush current stress. The integrated reversing switch lets you instantly change motor direction without rewiring, while the 4.7K adjustment potentiometer gives you smooth, stepless speed control from 5% to 95% duty cycle.

Made in Mainland China.

Key Features

• Wide Voltage Range: Works with 9–60V DC systems (12V, 24V, 36V, 48V compatible)
• High Power Handling: Max output 400W / 16A continuous (20A overload)
• PWM Speed Control: Smooth adjustment from 5%–95% duty cycle
• Soft-Start Function: Gradual motor spin-up for reduced inrush current
• Reversing Switch Included: Instantly change motor direction
• 4.7K Regulation Potentiometer: Included for easy speed adjustment
• EU LVD Compliant: Low voltage (below 50V AC / 75V DC)
• Compact Size: 9 × 5 × 3 cm (3.54 × 1.97 × 1.18 in) — fits tight enclosures
• No Battery Required: Powered directly from your DC supply

Specifications

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Frequently Asked Questions

Q: What types of DC motors is this PWM speed controller compatible with?

A: This PWM motor speed controller is compatible with most brushed DC motors operating between 9V and 60V, including motors rated at 12V, 24V, 36V, and 48V. It is suitable for applications such as electric scooters, conveyor belts, fans, pumps, and DIY automation projects, provided the motor does not exceed 400W or 16A continuous draw.

Q: Does the soft-start function help protect my motor?

A: Yes. The built-in soft-start function gradually ramps up power when the motor is switched on, reducing the inrush current spike that can occur with direct starts. This helps extend the working life of both the motor and the controller by minimizing sudden electrical stress at startup.

Q: Can I reverse the motor direction without rewiring?

A: Absolutely. This controller includes an onboard reversing switch that allows you to change the motor's rotation direction instantly without modifying any wiring — a convenient feature for robotics, winches, or any application requiring bidirectional control.

Q: What is PWM duty cycle and how does the speed adjustment work?

A: PWM (Pulse Width Modulation) controls motor speed by rapidly switching power on and off. The duty cycle — ranging from 5% to 95% on this controller — determines how much of each cycle the motor receives power. A higher duty cycle means more power and faster speed. You adjust this smoothly using the included 4.7K potentiometer knob.

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.