6V-90V 15A  PWM DC Motor Speed Controller w/ Knob--High Efficiency, High Torque, Low Heat Generating with Reverse Polarity Protection, High Current Protection From left to right they are Motor-, Motor+, Power-, Power+

Features

1. Operating voltage: DC6V-DC90V 
2. Control Power: 0.01-1000W (Max Current:15A) 
3. Quiescent Current: 0.05A (standby) 
4. PWM duty cycle: 0% -100% 
5. PWM Frequency: 15khz 
6. PCB Board: High temperature FR-4 PCB Thickness 1.6mm 
7. Reverse polarity protection:YES 
8. High-current protection: YES ( 20A fast fuses ceramic fuse ) 
9. Control voltage over-voltage protection: YES 
10. Control voltage : 0V - 5V ( voltage control type , you can control the speed of the motor directly with PLC ) 
11. Stepless speed regulation: The governor can control the motor speed from 0% -100% in stepless speed changing. 
12. Module Size (L x W x H): Approx. 64 x 59 x 22mm
13. Size (L x W x H ): Approx. 64 x 59 x 22 mm
14. Material: Plastic, metal

Package Includes

• 1 x DC Motor Speed Controller DC 6V-90V 15A with Potentiometer