The LEESON SPEED CONTROL is a WASHGUARD ADJUSTABLE AC MOTOR CONTROL that is perfect for regulating the speed of your 3-phase 1HP motor. Made in the United States, this VFD type speed control has a model number of 174532.00 and is designed to work with a voltage range of 400/480 volts. Ideal for industrial use, this high-quality motor control from Leeson is built to last and provides precise speed regulation for your motor. With a unit quantity of 1, this speed control is a must-have for anyone in need of reliable and efficient motor speed control.