Qualifying NEMA Premium^® Motors

• More copper wire for larger diameter in the stator saves energy by reducing the resistance of the stator winding.
• Thinner steel laminations decrease eddy current losses.
• Longer stator lowers magnetic density and increase cooling capacity. As a result, both magnetic and load losses are reduced.
• Larger conductive bars and ending rings reduce rotor resistance losses.
• Modified stator slot design helps to decrease magnetic losses and makes rooms for larger diameter wire.
• Premium grade steel core reduces hysteresis power losses.
• Efficient cooling fan design improves airflow and reduces power required to drive the fan.