Features： 1、OE Number: The referencing OE number of the motor speed controller is MM23001C. Please make sure the OE number matches the part you are replacing. 2、Adjustable Speed: With this DC motor speed controller, you can easily adjust the speed of your motor to match your specific needs, bring you convenient use. 3、Multiple Applications: Suitable for permanent magnetic or shunt wound, brush type motors. Enjoy efficient speed control for various applications. 4、Wide Voltage Range: Supports armature voltage 0 to 90 VDC (115V input) or 0 to 180 VDC (230V input). Suitable for replacing your broken one. 5、Stable Performance: Upgrade and professional design with powerful performance, this controller helps boost the overall performance of your equipment. Specification： Item Type: DC Motor Speed Controller OE: MM23001C Input: 115 or 230V AC, 50/60 Hz Armature Voltage (115V AC Input): 0-90 VDC Armature Voltage (230V AC Input): 0-180 VDC Output: 10 Amps 1/8 HP to 1 HP at. 90V DC 1/4 HP to 2 HP at. 180V DC Package List： 1 x DC Motor Speed Controller 1 x Instruction Manual 1 x Accessory 9 x Terminals 2 x Washers