The four types of wholesale Induction Motor
Type A: Conventional starting torque(usually 150-170 % rating) with a high starting current. The limit torque is the highest of all NEMA types. Can handle heavy loads in a short time. The difference is less than or equal to 5 %. A typical application is the motor of the injection molding machine.
Type B: The most common type of AC induction motor. Its starting torque is similar to that of type A, but sometimes it is also low, providing a lower starting current. However, it locks the rotor torque in industrial applications and still allows the starting load. The difference is less than or equal to 5 %. Motor efficiency and full-load power factors are relatively high. Typical applications include pumps, fans, and machine tools.
Type C: Provides high start torque(higher than types A and B, usually more than 200 % of the rated). It is often used to drive a restart load. These motors can run almost at full speed without overload. Low starting current. The difference is less than or equal to 5 %.
Type D: Of all NEMA motor types, the motor can provide the highest starting torque. Low start current and full load speed. High rotation difference(5-13 %), the motor is suitable for the motor operating speed, no load transformation or no drastic transformation, such as speed regulating wheel energy storage machinery. Many types of subcategories also include a wider range of transitions. This type of motor is generally specially customized.
