Motors Product: Controller/AC Motor Combo
The unit does not use an inverter and connects directly to an ac line. The high torque at low speeds eliminates gearing and the need for a separate controller cabinet, which results in reduced chance of damage to wiring post installation; no gearbox losses, less noise  no gearing or PWM whine, and no RFI or other PWM switching problems.
 DynaMotors Inc.
   4945 B Point   Pkwy.
    Cleveland, OH 44128
    (216)   292-7278
dynamotors.com