With the development of society, 3.3 inch motor aluminum shell type is often used to make small motors because of its small power. It is widely used in household appliances and small power machinery with little power, such as electric fans, air conditioners, medical equipment, small fans, automation instruments and household water pumps. As an important part matching the 3.3 inch motor aluminum shell type, the inverter needs to know how to choose the right inverter when it is used.3.3 inch motor aluminum shell type to choose the appropriate inverter general principle is the total power of multiple motors is not greater than the power of the inverter, and then according to the type of 3.3 inch motor aluminum shell type, careful consideration, speed range, static speed accuracy, starting torque, etc.

1. To choose the right inverter for 3.3 inch motor aluminum shell type, first consider whether the load type is constant torque load, constant power load and fan or pump load type.

2. The number of poles of the motor. In general, the number of poles of the motor should not exceed 4. Otherwise, the capacity of the inverter should be increased appropriately.

3. The actual motor current value should be used as the basis for selecting the inverter, and the rated power of the motor should be used as a reference.

4. According to the motor specification model, the inverter's specification model can be basically determined.

5. When the inverter is used to control multiple motors connected in parallel, the total length of the cable from the inverter to the motor must be considered to be within the allowable range of the inverter.

6. Pay attention to whether its protection level aligns with the site conditions. Otherwise, the site dust and water vapour will affect the long-term operation of the inverter.

7. If it is used for vector closed-loop control, the inverter and motor must match, not too big or too small, and if it is a heavy load, you can choose the heavy load type.

The above is the way to choose the right inverter for 3.3 inch motor aluminum shell type, hope it will be useful for your purchase and use.