Shenzhen Power Motor Ind. Co. Ltd. (China) released its PU6330 ac motors, which can run at no-load speeds up to 20,500 rpm, and offer a power output of 70 W. Rated at 220 Vac to 230 Vac, the products have a rated current of 0.4 A and accept input frequencies ranging from 50 Hz to 60 Hz.