This US Motors electric motor is designed to deliver a power output of 40 horsepower, capable of operating at dual speeds of 3560 revolutions per minute (RPM) when used with a 60 hertz (HZ) power supply and 2945 RPM with a 50 HZ power supply. It is engineered for versatility with dual voltage capabilities, accepting either 208-230 volts or 460 volts in a 60 HZ system, and 190 or 380 volts in a 50 HZ system. The motor features a frame size designated as 286JM.