1、PLC analog speed control can be connected between GND and 0-5V, useful and practical 2、Equipped with a digital display screen, display "48" means the current speed is 48% of the maximum speed of the motor 3、This potentiometer come with switch, speed control knob realizes 0%-100% adjustment 4、Made of high-quality plastic + aluminum alloy material, possess good strength and good corrosion resistance 5、This module possess high efficiency, widely used in DC motor speed control and high power controller Item Type: Speed Controller Module Material: Plastic + aluminum alloy Model: CCM6DS‑D Potentiometer: Resistance value B100K; opening approx. 8mm / 0.3in Input Voltage: DC12V‑80V The output voltage is about 0‑100% of the input voltage Control Power: Recommended within 12V250W, within 24V350W...48V500W Rated Current: 20A Maximum Current: 30A Speed Adjustment Range: 0%‑100% Size: Approx. 100 x 75 x 28mm / 3.9 x 3 x 1.1in(Speed control board) 79 x 42 x 24mm / 3.1 x 1.7 x 0.9in(digital display screen) PWM Frequency: 21KHz 1 x Speed Controller Module 1 x Screen