Our VSD Series II Micro Drives represent the next generation of solutions to solve your unique HVAC control needs. With a compact design, impressive torque response and easy setup, our Series II Micro Drives offer increased efficiency and long-lasting product life. Our Micro Drives are microprocessor-based drives that provide quiet operation, high motor efficiency, and smooth, low-speed performance in any HVAC application. Choose from single- and three-phase input devices ranging from 1/4 - 7.5 hp at 115V - 575V.