1Set DC Motor Variable Speed Control Module 115/230V 50/60Hz MM23001C. MM23001C DC Motor Variable Speed Control Module 115/230V 50/60Hz Adjustable SCR speed controller for permanent magnet or shunt wound, brush type motors. Ideal for motors in the range of 1/8 HP to 2 HP. Integral potentiometers for setting minimum and maximum speed, acceleration and deceleration, torque and IR compensation. Speed control potentiometer included. All items will be checked before packing. We are committed to give you the best customer service possible. We’d like to settle any problem in a friendly manner. We want to make sure you are happy with our item. Only unused, original condition item can be qualified for a return. We are committed to resolve all issues in a friendly and satisfactory manner. We will solve your problem during working time (except weekends and public holidays). We will reply you within 24- 48 hours. Emails, which are received during the weekend, will be replied on Monday.