The USVF Hybrid drives are a member of the ACCU‑SERIES family of variable speed products. The USVF Series of Adjustable Frequency Drives consist of eleven inverter models rated for 0.25 to 5 horsepower motors. These chassis / IP20 drives are ideal for mounting in control panels where digital programming and displays are not required. Hybrid drives are a digital drive with an analog interface. A 5 kohm Main Speed Potentiometer and Trimpot Adjustment Tool are also included.