PWM speed controller of DC motors 40A 55V with display

Product detailed description

The 40A 55V PWM DC motor speed controller with display allows you to smoothly control the speed of a DC motor within the range of 10-55 V and up to 40 A, including direction change via a switch. Regulation is carried out using pulse width modulation (PWM) without changing the voltage and current, so the motor maintains the same torque across the entire speed range – only the duty cycle changes. Speed is adjusted via a rotary potentiometer, with the current value shown on the built-in display; an external control panel with a potentiometer and switch can also be connected to the board via a 3-pin connector. The circuit does not have feedback to maintain the set speed, so the speed may vary slightly during significant changes in load.

Specifications:

• Supply Voltage: 10-55 V DC
• Maximum Current: 40 A
• Control Range: 0-100% (PWM pulse width)
• PWM Frequency: 15 kHz
• Direction Change: yes, via on-board switch
• Control: rotary potentiometer and switch on board, option to connect an external control panel (potentiometer + switch) via a 3-pin connector
• Display: built-in LED display
• Connection: screw terminal block (power +/–, motor +/–)
• Fuse: no
• Dimensions: 110 × 78 × 38 mm
• Weight: approx. 230 g

Package contents:

• 1× PWM DC Motor Speed Controller 40A 55V With Display

Note:

• The module does not include its own fuse – to protect the power supply, we recommend installing a suitable external fuse in the supply line according to the current draw.
• This product is not a standalone functional unit and may require professional installation.
• Product images are for illustrative purposes only and may sometimes differ from the actual appearance of the item. However, this does not change their basic properties.