Overview of YE3 Ultra-High-Efficiency Three-Phase Induction Motors 

The YE2 series (IP55) high-efficiency three-phase induction motors (frame sizes 80–355) (hereinafter referred to as “motors”) are low-voltage, totally enclosed, self-ventilated, high-efficiency squirrel-cage three-phase induction motors meeting the minimum energy efficiency requirements. Their efficiency values fully comply with Level 3 efficiency requirements specified in GB18613-2012 “Minimum Allowable Values of Energy Efficiency and Efficiency Grades for Small and Medium Three-Phase Induction Motors”, and are consistent with IE2 efficiency classification defined in IEC60034-30 “Efficiency Classes of Single-Speed, Three-Phase, Squirrel-Cage Induction Motors”. Efficiency is determined by the loss segregation method via measured input and output power (per Clause 10.4 of GB/T1032-2005).

YE3-315L2-4, YE2-315L2-4-200 kW — TAI FU SIMO New-Generation High-Efficiency Motor — YE2 High-Efficiency Three-Phase Induction Motor Applications:

This product is widely applied across all sectors of the national economy, such as machine tools, pumps, fans, and compressors; it is also suitable for transportation, mixing, printing, agricultural machinery, food processing, and other applications where flammable, explosive, or corrosive gases are absent.

YE2 High-Efficiency Three-Phase Induction Motor Mounting Dimensions:

Mounting dimensions and power ratings of the YE2 series (IP55) high-efficiency three-phase induction motors conform to IEC international standards and align with German DIN42673 standards. The enclosure protection rating is IP55; cooling method is IC411; duty type is continuous (S1). An F-class insulation system is adopted, but temperature rise is evaluated per B-class limits across the entire series. Load noise performance must be verified. Oil-filling and oil-draining devices are provided on frame sizes H280–355 motors.

YE3-315L2-4, YE2-315L2-4-200 kW — TAI FU SIMO New-Generation High-Efficiency Motor Technical Parameters:

Rated motor voltage: 380 V; rated frequency: 50 Hz; power range: 0.75–375 kW, covering 2-pole, 4-pole, and 6-pole configurations. Y-connection is used for motors ≥3 kW; △-connection is used for motors ≥4 kW. Motors comply with “Technical Specifications for YE2 Series (IP55) High-Efficiency Three-Phase Induction Motors (Frame Sizes 80–355)”.

YE3-315L2-4, YE2-315L2-4-200 kW — TAI FU SIMO New-Generation High-Efficiency Motor Ordering Notes:Motor operating altitude shall not exceed 1000 m; maximum ambient air temperature varies seasonally but shall not exceed 40 °C; minimum ambient temperature shall not fall below –15 °C.

Leveraging the robust technical capabilities of TAI FU Group, the company develops and manufactures a comprehensive portfolio of motors, leading domestically in terms of product variety. It offers 31 major series, over 1,800 models, and more than 19,500 specifications, with power ratings spanning 0.35 kW to 20,000 kW. Its registered trademark is “SIMO”. All products comply with international, national, industrial, and enterprise standards, and are extensively deployed in power generation, coal mining, petroleum, metallurgy, railway, transportation, chemical industry, agriculture, water resources, aviation, maritime operations, and high-tech fields. The company is a designated motor supplier for China State Railway Group.

For many years, SIMO-branded products have repeatedly been honored as “Recommended Products” and “Famous Brand Products” by provincial, municipal, and ministerial authorities, as well as “National Exemption-from-Inspection Products” and “China’s Glory Famous Brand Products”. In 1995, SIMO became the first motor manufacturer in China to obtain ISO 9001:1994 quality management system certification. In August 2005, it passed the ISO 9001:2000 quality management system certification awarded by China Quality Certification Centre (CQC). In May 2006, SIMO further obtained ISO 14000 environmental management system and OHSAS 18000 occupational health and safety management system certifications—making it the first enterprise in the motor industry to hold all three certifications. Meanwhile, SIMO motors have also passed EU “CE”, US “UL”, Russian “GOST”, and China’s mandatory national “CCC” certifications. SIMO holds AAA credit rating for product quality and reputation, and ranks among China’s Top 500 Machinery Industry Enterprises.

In 1999, the company was approved by the Provincial Economic & Trade Commission to establish a provincial-level technology center. It passed provincial enterprise technology center accreditation in 2008 and 2012. The center undertakes design tasks for AC high-voltage and high-voltage variable-frequency motors; AC synchronous, AC low-voltage, low-voltage variable-frequency, DC motors, and generators.
The company possesses strong financial resources, robust operational capability, high capital utilization efficiency, rapid capital turnover, and an excellent credit standing.

Adhering to the business principle of “Market First, Customer Supreme”, the company has established 11 sales regions and 35 branch offices across all 31 provinces, municipalities, and autonomous regions of China, and maintains long-term cooperative relationships with over 30 agents. Its sales and service network covers every region of China and extends to more than 40 countries and regions worldwide—including North America, Europe, Africa, Southeast Asia, and the Middle East—with annual sales revenue exceeding RMB 1 billion.

The company maintains a comprehensive after-sales service network, operating service outlets in over 10 provinces and regions—including Jiangsu/Zhejiang, Yunnan/Guizhou/Sichuan, Northeast China (Liaoning/Jilin/Heilongjiang), Fujian/Guangdong, Hunan/Jiangxi/Hubei, Xinjiang/Qinghai/Tibet, Hebei, Shanxi/Inner Mongolia, and Shandong—ensuring prompt after-sales support that has earned widespread customer praise. Upholding the “Three-Heart” service philosophy—“Sincerity, Thoughtfulness, Dedication; SIMO Always Puts Its Heart Into Service”—and the service mission of “Building Customer Confidence Through Honest Service”, the company issues its nationwide “After-Sales Service Commitment Letter”, operates a national service hotline, and maintains a 24-hour on-duty system. It guarantees that, should quality issues arise during product use, service personnel will arrive on-site within 24 hours for locations within 500 km, within 48 hours for distances between 500–1000 km, and within 56 hours for distances beyond 1000 km—providing customers nationwide with swift and convenient after-sales service. Let us join hands to create a brighter future together!  

YE2 Series (IP55) High-Efficiency Three-Phase Induction Motors (Frame Sizes 80–355) (hereinafter referred to as “motors”) are low-voltage, totally enclosed, self-ventilated, high-efficiency squirrel-cage three-phase induction motors meeting minimum energy efficiency requirements. Their efficiency values fully comply with Level 3 efficiency requirements specified in GB 18613–2012 “Minimum Allowable Values of Energy Efficiency and Efficiency Grades for Small and Medium Three-Phase Induction Motors”, and are consistent with IE2 efficiency classification defined in international standard IEC 60034-30 “Efficiency Classes of Single-Speed, Three-Phase, Squirrel-Cage Induction Motors”. Efficiency is determined via loss-analysis method based on measured input and output power (per Clause 10.4 of GB/T 1032–2005).

Applications of YE2 High-Efficiency Three-Phase Induction Motors:

This product is widely applied across all sectors of the national economy—including machine tools, pumps, fans, and compressors—and is also suitable for transportation, mixing, printing, agricultural machinery, food processing, and other applications where flammable, explosive, or corrosive gases are not present.

Mounting Dimensions of YE2 High-Efficiency Three-Phase Induction Motors:

YE3-315L2-4 and YE2-315L2-4–200 kW: The mounting dimensions and power ratings of SIMO’s new-generation high-efficiency motors comply with IEC international standards and are consistent with the German DIN 42673 standard. Their enclosure protection rating is IP55; cooling method is IC411; duty type is continuous (S1). They feature Class F insulation construction, but temperature rise is evaluated per Class B across the entire series; load noise is also subject to evaluation; oil-filling and oil-draining devices are provided on motors from frame size H280 to H355.

YE2 High-Efficiency Three-Phase Induction Motor Parameters:

Rated motor voltage: 380 V; rated frequency: 50 Hz; power range: 0.75–375 kW, covering 2-pole, 4-pole, and 6-pole configurations. Motors with power above 3 kW use Y-connection; those above 4 kW use Δ-connection. Motors conform to the “Technical Specifications for YE2 Series (IP55) High-Efficiency Three-Phase Induction Motors (Frame Sizes 80–355)”.

Ordering Notes: Motor operating altitude shall not exceed 1,000 m; maximum ambient air temperature varies seasonally but shall not exceed 40 °C; minimum ambient temperature shall not be lower than –15 °C.

Relying on the robust technical capabilities of TAI FU Group, the company develops and manufactures a comprehensive range of motors, leading domestically in this field. It offers 31 major product series, over 1,800 models, and more than 19,500 specifications, with power ratings spanning 0.35 kW to 20,000 kW. Its registered trademark is the “SIMO” brand. All products meet international, national, industrial, and corporate standards, and are widely applied across power generation, coal, petroleum, mining, metallurgy, railways, transportation, chemical industry, agriculture, water conservancy, aviation, maritime navigation, and high-tech sectors. The company is a designated motor supplier for China State Railway Group.

Over the years, “SIMO”-branded products have repeatedly been honored as provincial/municipal/ministerial “Recommended Products”, “Famous Brand Products”, “National Exemption-from-Inspection Products”, and “China Light of Glory Famous Brand Products”. In 1995, it became the first motor manufacturer in China to obtain ISO 9001:1994 quality management system certification; in August 2005, it passed ISO 9001:2000 certification by China Quality Certification Centre (CQC); and in May 2006, it further achieved ISO 14000 environmental management system and OHSAS 18000 occupational health and safety management system certifications—making it the first motor enterprise in China to hold all three certifications. Meanwhile, “SIMO Motor” has also obtained EU “CE”, U.S. “UL”, Russian “GOST”, and China’s mandatory national “CCC” certifications, holds AAA-grade quality and credit rating, and ranks among the Top 500 Machinery Enterprises in China.

In 1999, the company was approved by the Provincial Commission of Economy and Trade to establish a provincial-level technology center. It passed provincial enterprise technology center accreditation in 2008 and 2012. It undertakes design tasks for AC high-voltage and high-voltage variable-frequency motors; AC synchronous, AC low-voltage, low-voltage variable-frequency, DC motors, and generators.
The company possesses strong financial resources, excellent operational capability, high capital utilization efficiency, rapid capital turnover, and sound credit standing.

Adhering consistently to the business principle of “Market First, Customer Supreme”, the company has established 11 sales regions and 35 branch offices across all 31 provinces, municipalities, and autonomous regions of China, and maintains long-term cooperative relationships with over 30 agents. Its sales and service network covers the entire domestic market and extends to over 40 countries and regions—including North America, Europe, Africa, Southeast Asia, and the Middle East—with annual sales revenue totaling approximately RMB 1 billion.

The company maintains a comprehensive after-sales service network, with service centers established in over 10 provinces and municipalities—including Jiangsu and Zhejiang, Yunnan–Guizhou–Sichuan, the three Northeastern provinces, Fujian and Guangdong, Hunan–Jiangxi–Hubei, Xinjiang–Qinghai–Tibet, Hebei, Shanxi–Inner Mongolia, and Shandong—earning high praise from customers for its prompt after-sales support. Adhering steadfastly to the “Three-Heart” service philosophy—“sincere, considerate, and devoted; SIMO always serves with heart”—and the service mission of “building customer confidence through honest service,” the company has issued its nationwide “After-Sales Service Commitment Letter,” launched a national service hotline, and implemented a 24-hour on-duty system. The company commits that, should quality issues arise during product use, service personnel will arrive on-site within 24 hours for distances up to 500 km, within 48 hours for distances between 500–1000 km, and within 56 hours for distances exceeding 1000 km upon receipt of the customer’s notification—ensuring swift and convenient after-sales service for all customers. Let us join hands to create a brighter tomorrow!