25 Common Types of Three-Phase Asynchronous Motors: Product Models, Structural Features, and Applications
1. Small three-phase asynchronous motor (enclosed type)
Y2 (IP55), Y (IP44), JO2, JO
H80-3550 . 75~315KW
The casing is enclosed to prevent dust and water droplets from entering. Y2 is Class F insulation, Y is Class B insulation, and JO2 is Class E insulation. It is used for various mechanical equipment without special requirements , such as metal cutting machine tools, water pumps, blowers, and transportation machinery.
2. Small three-phase asynchronous motor (protected type)
Y(IP23), J2, J
H160-31511-250KW
The outer casing is protective, preventing debris or water droplets larger than 12mm in diameter from entering the motor at a 60° angle to the vertical. It is suitable for various mechanical equipment with long operating times and high load rates.
3. High-efficiency three-phase asynchronous motor
YX(IP44)
H100-2801 . 5-90KW
Using cold-rolled silicon steel sheets and new processes to reduce motor losses, the efficiency is 3% higher on average than the Y series, making it suitable for heavy-load starting applications such as lifting equipment, winches, compressors, and pumps.
4. Wound-rotor three-phase asynchronous motor
YR(IP44)(IP23), JRO2, JR2
H132-2804-75KW
The rotor is a wound-rotor type, which can obtain a large starting torque and adjust the motor speed in stages within a certain range by connecting an external resistor to the rotor.
5. Variable frequency multi-speed three-phase asynchronous motor
YD(IP44), JDO2
H80-2800 . 55-90KW
Derived from the Y basic series, it utilizes multiple stator winding connection methods to achieve speed regulation of the motor. It is suitable for universal, combination, and special-purpose cutting machine tools and transmission mechanisms requiring multi-stage speed regulation.
6. High slip three-phase asynchronous motor
YH(IP44), JHO2
H80-2800 . 55-90KW
Derived from the Y basic series, it uses a rotor with deep slots and high resistivity rotor conductor structure, resulting in large stall torque, high slip, small stall current, and soft mechanical characteristics. It can withstand impact loads and is used for transmission flywheels with large torque and uneven impact loads, such as hammering machines, shearing machines, stamping machines, forging machines, etc.
7. Electromagnetic speed-regulating three-phase asynchronous motor
YCT、JZT
H112-3350 . 55-90KW
Composed of a Y-series motor and an electromagnetic clutch, this is a constant torque stepless speed regulating motor. It is used in applications requiring constant speed stepless speed regulation, and is particularly suitable for loads such as fans and water pumps.
8. Electromagnetic brake three-phase asynchronous motor
YEJ
H80-2250 . 55-45KW
This system combines a Y-series motor with a DC disc brake at one end, enabling rapid stopping and precise positioning. It is used in lifting machinery, transportation, packaging, construction, food processing, woodworking machinery, and more.
9. Increased safety type three-phase asynchronous motor
YA、JAO2
H80-2800 . 55-75KW
The Y series features enhanced structural and protective measures, making it suitable for applications with explosion hazards.
10. Explosion-proof three-phase asynchronous motor
YB, BJO2
H80-3150 . 55-220KW
Derived from the Y basic series, manufactured according to explosion-proof standards. Used in coal mines and factories with flammable gases.
11. Outdoor three-phase asynchronous motor
YW, JO2-W
H80-3150 . 55-160KW
Derived from the Y basic series, it incorporates enhanced structural sealing and material/process corrosion protection measures. YW is used for outdoor machinery, YF for machinery exposed to chemically corrosive media, and Y-WF for various outdoor machinery exposed to chemical corrosion. It is mainly used in water pumps, oil pumps, blowers, exhaust fans, and other mechanical equipment in petroleum, chemical, fertilizer, pharmaceutical, and printing and dyeing enterprises.
12. Protective three-phase asynchronous motor
YF, JO2-F
13. Outdoor corrosion-resistant three-phase asynchronous motor
Y-WF, JO2-WF
14. Marine three-phase asynchronous motor
YH, JO2-H
H80-3150 . 55-220KW
Derived from the Y basic series, various machines such as pumps, ventilators, separators, and hydraulic machinery are manufactured according to the characteristics of ship use for marine and river vessels.
