The duty cycle, Figure 6, is defined as the percentage of total cycle time that is on time — the period that current is running through the motor windings. Off time is the amount of time
at which the motor windings are de-energized — the cool down period.
Once the duty cycle and horsepower/torque are determined for the application,
establish the point on the manufacturer’s literature (curves as shown in Figure 5) to determine
whether the motor will operate satisfactorily