DC Motor Speed Controller 10V To 50V 40A PWM Reversing

Control the speed and direction of your DC brushed motor with the DC Motor Speed Controller 10V To 50V 40A PWM Reversing. This elegant, easy-to-use controller is built on a high-quality circuit board for longer service life and dependable performance. Designed for DC brushed motors, it handles input voltages from 10V up to 50V and uses PWM at 16 kHz to deliver smooth, linear output that tracks closely with load.

The robust case protects the controller board from damage and helps dissipate heat, while two built-in 80A relays provide reliable regulation even under demanding loads. The device also supports forward and reverse operation, allowing you to reverse motor direction with a simple switch as you dial in the perfect speed.

Originating from Mainland China, this speed controller is sized 110 x 90 x 78 x 38 mm (about 4.33 x 3.54 x 3.07 x 1.50 inches) and is suitable for DC brushed motors within 12V 250W, 24V 350W, and 48V 500W ranges. Use it to fine-tune motor speed in robotics, automation, EV projects, or hobby machines with precision and reliability.

Benefits & Tips

• Precise speed control for robotics, model cars, conveyors, and DIY automation projects.
• Use the forward/reverse switch to swap motor direction safely without rewiring, and adjust with the potentiometer for the exact speed you need.
• Keep the controller well-ventilated and housed in its protective case to extend life and maintain performance under load.

Product specifications

• Input Voltage: DC 10V to 50V
• Output Voltage: Linear with load
• Maximum Current: 40A
• Rated Current: 30A
• Frequency: 16KHz
• Speed Range: 0% to 100%
• Forward & Reverse: Supported
• Regulation Method: Potentiometer with switch
• Regulation Type: Regulating Current
• Size: 110 x 90 x 78 x 38mm
• Fitment: Suitable for DC brushed motors within 12V 250W, 24V 350W, 48V 500W
• Origin: Mainland China

Package includes:

• 1 x Speed Controller

Warnings/Reminders

• This product is only for speed regulation of DC brushed motors.
• This product cannot be used as a voltage regulator or stabilizer.
• This product cannot be powered by 48V batteries or accumulators.
• Please confirm your needs before ordering.

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