Variable Speed Motors

Variable speed motors, panels and drives that deliver precision and efficiency

Our ACCU-Series™ variable speed line offers product compatibility for a true system solution. You can easily match a U.S. MOTORS® brand inverter duty motor with a Nidec Motor Corporation drive or panel, or purchase integrated motors and controls. These solution-driven products, designed to be used together as a system, make it easy to choose compatible variable speed motors and drives that are engineered to work together for better, more reliable performance.

          Explore our standard Inverter Duty motors here:

By offering all components of the drive system, Nidec Motor Corporation also gives you a single point of contact for support and service. And, by matching a new U.S. MOTORS brand inverter duty motor with a drive in the ACCU-Series line, you can enjoy the benefits of a motor match warranty that extends the drive warranty to match that of the motor.

These motors are designed for the application requirements of variable speed drive systems. We offer both the following types of motors:

• Constant Torque: Motors specifically designed to handle constant torque loads, such as conveyors, positive displacement pumps, cranes, etc.
• Variable Torque: Motors specifically designed to handle variable torque loads such as pumps and fans.

ACCU-Series variable speed motors are used for a variety of applications in the food and beverage, packaging, water, wastewater and irrigation industries, just to name a few. Nidec Motor Corporation relentlessly focuses on improving the precision, efficiency and performance of our motors and variable speed systems. Together, they work seamlessly for ultimate reliability, inspiring the confidence that springs from one point of responsibility for both motor and drive.

ACCU-Series drives provide efficient, reliable and quiet control of motors for a variety of applications such as HVAC, pumping and other purposes requiring precise speed control without a feedback device. These dependable drives are easy to install and simple to operate. Their high level of efficiency also provides them a more positive environmental impact.


U.S. MOTORS brand Hybrid Drives

Variable Frequency AC Drives 1/8HP to 600HP for many different applications

ACCU-Series pump panels are equipped with many of the most-asked-for features in an off-the-shelf product. Their pump-specific software and setup parameters allow for simple installation. You can choose constant pressure or flow settings, and a removable keypad ensures that only qualified personnel can reprogram the pump drive. These ACCU-Series drives, pumps, and variable speed motors work together seamlessly to increase efficiency and decrease costs.

Nidec/U.S. MOTORS takes an ACCU-Series drive and integrates it into a full wire-to-motor solution for pumping applications. The panel has many features that are required standards for the agricultural pumping industry.

Accu-Torq® Vector Duty Motors: