YE3 Super-High Efficiency Motor is a three-phase asynchronous motor designed for high efficiency and energy savings. Manufactured by Shanghai Douli Power Co., Ltd, this motor meets stringent performance and environmental standards. It is suitable for a range of industrial and commercial applications including fans, pumps, compressors, and conveyors.

Main Technical Parameters

1. Brand: Doulipower
2. Model: YE3
3. Phase: three phase
4. Poles: 2,4,6,8,10,12
5. Voltage: 380v
6. Frequency: 50hz
7. Power: 0.12kw-375kw
8. Efficiency: IE3
9. Housing: cast aluminum or cast iron
10. Wiring: star wiring (Y-Connection); delta wiring
11. Winding wire: copper
12. Mounting way: B3 B5 B8 B14 etc, which satisfy IEC 60034-7 standard (or GB/T 997)
13. Certification: CE; ISO9001; CCC; RoHS
14. Ambient Temperature: between -15°C and +40°C
15. Altitude: Within 1000 Meters
16. Cooling Type: IC411
17. Insulation Class: Class F
18. Protection Type: IP55
19. Duty/Rating: S1

YE3 motor is a kind of three-phase asynchronous motor with high efficiency and energy-saving features, which is suitable for general use places where energy-saving continuous operation is required, such as fans, pumps, machine tools and so on.

The following are some key features of YE3 motors:
1. Design features
YE3 motors usually adopt cast iron casing with compact structure, and the protection level is usually IP55 or higher, which can be dustproof and waterproof and adapt to various industrial environments. The cooling method is mostly IC411 structure with its own fan, which ensures good heat dissipation when the motor is running efficiently. This kind of motor’s seat number ranges from 63 to 355, power from 0.12kW to 400kW, working system is S1.

2. Energy efficient
YE3 motors are designed to meet China’s GB18613-2012 Class 2 (IE 3) energy efficiency rating standards, which are more energy efficient than traditional Y series motors and can significantly reduce energy consumption and operating costs.

3. Low noise and vibration
The motor adopts optimized structural design and high quality materials, which makes it generate low noise and vibration during operation, and is suitable for occasions requiring quiet operating environment.

4. High reliability
YE3 motors have good overload capacity and durability, and are able to operate stably for a long period of time under more severe environments. At the same time, it adopts high-quality bearings and insulation system, which prolongs the service life of the motor.

5. Environmental performance
YE3 motor meets the international environmental protection requirements, using harmless materials to reduce the impact on the environment, and due to its high efficiency, it can reduce carbon emissions, in line with the requirements of modern industry on environmental protection.

6. Wide application
Due to its high efficiency, energy saving and stability, YE3 motors are widely used in various industrial equipments such as fans, pumps, compressors, conveying machines, etc. They are also suitable for occasions that require long-term continuous operation.

The performance data of the motors show that they have different parameters such as rated power, rated current, rotational speed, efficiency, power factor, rated torque, etc. under different models to meet the needs of different application scenarios.

When selecting a YE3 motor, the user can choose based on the desired seat number, number of poles, mounting dimensions, and other technical parameters. The motor is ordered with the default junction box location of side right outlet, unless otherwise specified.

For more detailed data or special requirements, refer to the detailed technical documentation and catalogs provided by the motor manufacturer.

Operating Condition
The operating conditions of YE3 motors (Operating Condition) mainly include the following aspects:

1. Ambient Temperature
YE3 motors are normally designed for use in ambient temperatures between -15°C and +40°C. If the ambient temperature exceeds this range, additional cooling or heating may be required, or a specially designed motor may be used. If the ambient temperature exceeds this range, additional cooling or heating measures may be required, or specially designed motors may be used.

2. Altitude
YE3 motors are suitable for altitudes up to 1000 meters above sea level. If the motor is used at a higher altitude, the cooling effect of the motor will be reduced due to the lower air density, and it will be necessary to reduce the rated power of the motor or choose a special design of the motor.

3. Power supply conditions
The standard power supply requirement for YE3 motors is three-phase alternating current, usually 380V (±10%), with a frequency of 50Hz (±5%). If the power supply conditions are outside this range, it may be necessary to adjust the power supply by means of a frequency converter or other means.

4. Protection class
YE3 motors usually have a protection class of IP55, which means that the motor is protected against dust ingress and against water spray from all directions. If a higher degree of protection is required (e.g. IP65), this can be customized as required.

5. Humidity
YE3 motors are generally suitable for environments where the relative humidity does not exceed 90%. If the humidity is high, especially if the motor is operated in a permanently humid environment, it may be necessary to use a moisture-proof motor or to take additional protective measures.

6. Operating system
YE3 motors are normally designed for S1 (continuous duty), i.e. the motor can be operated continuously at the rated load without stopping for cooling. However, they can also be designed to accommodate other operating regimes (e.g. S2 short-time operating regime) depending on the application requirements.

7. Vibration and shock
YE3 motors are suitable for vibration and shock conditions in normal industrial environments. If higher vibration or shock conditions are required, motors with enhanced vibration-resistant design should be used.

8. Cooling
YE3 motors are usually cooled by the IC411 cooling method, i.e., the motor is externally ventilated by its own fan. This cooling method is suitable for most common industrial environments.
With the above design and requirements, YE3 motors are able to provide reliable and stable operation in most industrial application scenarios, and meet the operation requirements under various severe conditions.

Mounting Type
The mounting method of YE3 motors is mainly regulated according to the IEC 60034-7 standard and its equivalent national standards (e.g. GB/T 997). These standards specify in detail the motor mounting method codes, mounting requirements and dimensions, making the motor mounting methods uniform and interchangeable worldwide.

Other industry or regional standards, such as NEMA and ISO standards, may also be referenced or adopted under specific circumstances. Different mounting methods provide flexible applications of YE3 motors in various machinery and equipment, and users can choose the appropriate mounting type according to the specific mechanical structure and installation requirements.

Bearing
The bearings of YE3 motors are designed to ensure high efficiency, stable operation and long service life of the motor. High-quality ball bearings or roller bearings are usually used, and the appropriate type is selected according to the power and load requirements of the motor.

The bearings of YE3 motors have excellent sealing performance to prevent the ingress of dust and moisture, and are equipped with re-lubricatable features in some models for easy maintenance. These bearings are not only characterized by low noise and vibration, but also provide excellent reliability under high loads and harsh environments.

Terminal Box
The junction box of YE3 motors is made of high-strength cast aluminum or cast iron, with excellent dustproof and waterproof performance, usually reaching IP55 or higher protection level. The junction box is spaciously designed for easy cable connection and maintenance, and is usually equipped with standardized terminal blocks and grounding terminals to ensure safe and reliable electrical connections.

The junction box is usually positioned on top of the motor and can be rotated as required to suit different installation requirements. In addition, clear wiring diagrams are provided inside the terminal box for easy installation and operation on site.

Wiring
The wiring methods for YE3 motors mainly include star wiring (Y-Connection) and delta wiring (Δ-Connection), and the appropriate wiring method is selected based on the motor’s voltage and application requirements. Star connection is usually used for lower voltages (e.g. 380V), which helps to reduce the starting current, while delta connection is suitable for higher voltages (e.g. 690V), providing higher starting torque.

The terminal layout inside the junction box is clear and marked with standardized terminal identification, making it easy for users to connect the wires correctly according to their needs and ensuring safe and stable operation of the motor.

Application
YE3 motor is widely used in various industrial and commercial fields due to its high efficiency, energy saving and reliable performance. It is suitable for driving pumps, fans, compressors, conveyors and other equipment, and is ideal for manufacturing, mining, petrochemical, electric power, construction and other industries.

In addition, YE3 motors are widely used in HVAC systems, machine tools, lifting equipment and agricultural machinery, where their superior performance meets the stringent requirements for long continuous operation, high energy efficiency and low noise.