Wide Voltage Compatibility - This motor speed controller is designed for 12-60V DC brush motors, making it versatile for applications requiring precise speed regulation. For PWM Speed Control with High Frequency - Features pulse-width modulation ( for PWM) for smooth speed adjustment at a high frequency of 15KHz, stable and efficient motor performance. High-Capacity & Reliable Design - Rated for 20A current with lasting electronic components, providing long-lasting operation and resistance to wear in industrial environments. Compact & Accurate Engineered - Its compact size, wide speed range, and high accurate best for applications in packaging, printing, food processing, electronics, and more. Forward & Reverse Function - Offers flexible motor control with optional forward and reverse rotation, enhancing usability in different production line setups. Name:DC brush motor speed controller Size:60x100x90mm Speed regulation mode:pulse width Pulse width frequency:15KHz Input voltage:DC12-60V Modulation output:0-input voltage Rated current:20A Output current:Less than 10A Maximum current:20A Continuous current:10A Speed adjustment range:0%-100% Quiet current:0.01A(standby state) Speed adjustment:potentiometer Directions: 1. Turn off power,connect it according to wiring diagram and make sure connection is correct 2. Fix controller well and set speed to lowest"0",so as to avoid sudden large current and permanent damage when starting power supply 3. Then turn on power and adjust speed knob to desired position.Please turn off power when not needed. 4. The governor is connected to motor.If torque or speed is found to be inconsistent with requirements,please adjust fine-tuning ntiometer on side of product. 5. To change running direction of motor,easily replace for jumper lines of "CW" on back of controller. 6. Select COM and CW short connection,then motor rotate clockwise. 7. Select COM and short connection,then motor does counterclockwise rotation. Model:A:M6020RF(with forward and reverse) Colour:Black Material:Metal Package Contents: 1 * DC brush motor speed controller Only above package content, other products are not included. Note: Light reflection and different displays may cause color of item in picture a little different from real thing. The measurement allowed error is +/- 1-3cm.