YE4 Low Voltage TEFC Three Phase Induction Motor

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YE4 Low Voltage TEFC Three Phase Induction Motor

YE4 Super High Efficiency Three Phase Asynchronous Motor is a high-efficiency industrial motor designed for industrial equipment applications. It adopts a totally enclosed fan cooled (TEFC) structure with a squirrel cage rotor design. With high efficiency, stable operation and standard installation dimensions, it is widely used in machine tools, pumps, agricultural machinery and other industrial equipment.

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Technical Specifications

Product Name YE4 Super High Efficiency Three Phase Asynchronous Motor
Motor Type Three Phase Asynchronous Motor
Efficiency Class YE4
Cooling Method Totally Enclosed Fan Cooled (TEFC)
Rotor Type Squirrel Cage Rotor
Standard GB/T 28575-2020 / IEC 60034-30
Frame Size 80-355mm
Power Range 0.75kW-315kW
Rated Voltage 380V (Other voltages available under separate agreement)
Frequency 50Hz / 60Hz
Protection Class IP55
Insulation Class Class F
Duty Type S1
Installation Height ≤1000m
Ambient Temperature ≤40℃


Applications
YE4 Super High Efficiency Three Phase Asynchronous Motors are mainly used in industrial equipment requiring continuous and reliable power supply.
1. Industrial Pumps:Water supply pumps,Industrial circulation pumps,Cooling system pumps,Wastewater treatment pumps
2. Fans and Ventilation Equipment: Industrial ventilation systems 、Exhaust fans、Cooling fans、Air handling equipment
3. Compressors: Air compressors,Industrial gas compressors,Refrigeration compressor systems
4. Machine Tools: CNC machine tools,Metal processing equipment,Grinding machines
5. Agricultural Machinery: Grain processing equipment,Agricultural production machinery,Irrigation systems
6. Food Processing Equipment: Mixing equipment,Conveying systems,Processing machinery

Core Features
High Efficiency Energy Saving

YE4 Super High Efficiency Three Phase Asynchronous Motor is designed according to the energy efficiency requirements of GB 18613-2020. The motor provides high efficiency performance to help reduce energy consumption during long-term industrial operation.

TEFC Squirrel Cage Structure

 YE4 Super High Efficiency Asynchronous Motor adopts a totally enclosed fan cooled (TEFC) structure with a squirrel cage rotor design. This structure helps improve motor protection and provides stable operation in industrial environments.

Continuous Operation Design

The YE4 Super High Efficiency Asynchronous Motor adopts S1 duty type, which is suitable for continuous operation under rated working conditions and provides stable power output for industrial equipment.

Standardized Specifications

YE4 Super High Efficiency Three Phase Asynchronous Motor are available with frame sizes from 80 to 355mm and a power range from 0.55kW to 315kW. The motor is available with a rated voltage of 380V, with other voltage options available under separate agreement, and supports 50Hz or 60Hz frequency requirements.

Wide Industrial Applications

YE4  Three Phase Asynchronous Motor are widely used in machine tools, pumps, fans, compressors, transportation equipment, mixing equipment, printing machinery, agricultural machinery, food processing equipment and other industrial applications.

OEM / ODM Capability
We provide OEM and ODM services according to customer requirements.
Customization options include:
Motor specifications
Voltage and frequency requirements
Product labeling
Packaging design
Appearance customization
Application-specific solutions
Our engineering team can support customers from product selection to mass production.

Customer Pain Points Solved
Problem 1:Customers need motors with lower energy consumption.
Solution:YE4 high efficiency motors help reduce energy loss during long-term operation.

Problem 2:Distributors need reliable suppliers.
Solution:Factory direct manufacturing supports stable bulk supply.

Problem 3:Equipment manufacturers need customized motors.
Solution:OEM/ODM service helps match different equipment requirements.

Suitable Buyers / Filter C-end Customers
This product is mainly designed for:
✓ Industrial equipment manufacturers
✓ Motor distributors
✓ Electrical wholesalers
✓ Engineering companies
✓ OEM equipment suppliers

Not suitable for:
✘ Individual household users
✘ Small repair purchases
✘ One-piece retail orders


FAQ 
Q1: What applications are YE4 Super High Efficiency Three Phase Asynchronous Motor suitable for?
YE4 motors are suitable for industrial equipment such as pumps, fans, compressors, machine tools and manufacturing equipment.

Q2: Can you provide OEM service?
Yes. We support customized specifications, labels, packaging and production requirements.

Q3: What is the difference between YE4 and standard motors?
YE4 motors focus on higher efficiency and lower energy loss during operation.

Q4: What is the minimum order quantity?
MOQ depends on motor specifications and customization requirements.

Q5: Can you provide different voltage options?
Yes. Other voltage requirements can be discussed according to customer applications.

For motors with a power of 3kW or below, the star (Y) connection is used; for those above 4 kW, the delta (△) connection is used. The specific wiring connection  is shown  in the figure  below:

Technical Data

Type Power kW Rated current A Rotational speed r/min Eff.% P.F N.m Tst/TN Ist/IN Tmax/TN dB(A)
Synchronous speed 3000 r/min
YE4-80M1-2 0.75  1.6  2895  83.5  0.83  2.47  2.2  8.5  2.3  62 
YE4-80M2-2 1.1  2.4  2890  85.2  0.83  3.63  2.2  8.5  2.3  62 
YE4-90S-2 1.5  3.1  2880  86.5  0.85  4.97  2.2  9.0  2.3  67 
YE4-90L-2 2.2  4.4  2880  88.0  0.86  7.30  2.2  9.0  2.3  67 
YE4-100L-2 3  5.9  2905  89.1  0.87  9.86  2.2  9.5  2.3  74 
YE4-112M-2 4  7.7  2920  90.0  0.88  13.1  2.2  9.5  2.3  77 
YE4-132S1-2 5.5  10.4  2945  90.9  0.88  17.8  2.0  9.5  2.3  79 
YE4-132S2-2 7.5  14.0  2940  91.7  0.89  24.4  2.0  9.5  2.3  79 
YE4-160M1-2 11  20.3  2965  92.6  0.89  35.4  2.0  9.5  2.3  81 
YE4-160M2-2 15  27.5  2965  93.3  0.89  48.3  2.0  9.5  2.3  81 
YE4-160L-2 18.5  33.7  2965  93.7  0.89  59.6  2.0  9.5  2.3  81 
YE4-180M-2 22  40.0  2970  94.0  0.89  70.7  2.0  9.5  2.3  83 
YE4-200L1-2 30  54.2  2965  94.5  0.89  96.6  2.0  9.0  2.3  84 
YE4-200L2-2 37  66.6  2965  94.8  0.89  119  2.0  9.0  2.3  84 
YE4-225M-2 45  80.9  2970  95.0  0.89  145  2.0  9.0  2.3  86 
YE4-250M-2 55  98.5  2980  95.3  0.89  176  2.0  9.0  2.3  89 
YE4-280S-2 75  134  2975  95.6  0.89  241  1.8  8.5  2.3  91 
YE4-280M-2 90  160  2975  95.8  0.89  289  1.8  8.5  2.3  91 
YE4-315S-2 110  196  2985  96.0  0.89  352  1.8  8.5  2.3  92 
YE4-315M-2 132  234  2985  96.2  0.89  422  1.8  8.5  2.3  92 
YE4-315L1-2 160  284  2985  96.3  0.89  512  1.8  8.5  2.2  92 
YE4-315L2-2 200  354  2985  96.5  0.89  640  1.8  8.5  2.2  92 
YE4-355M-2 250  433  2985  96.5  0.91  800  1.6  8.5  2.2  97 
YE4-355L-2 315  545  2985  96.5  0.91  1008  1.6  8.5  2.2  97 

Type Power kW Rated current A Rotational speed r/min Eff.% P.F N.m Tst/TN Ist/IN Tmax/TN dB(A)
Synchronous speed 1500 r/min
YE4-80M1-4 0.55  13.4  1440  83.9  0.74  3.65  2.4  6.6  2.3  56 
YE4-80M2-4 0.75  1.8  1440  85.7  0.74  4.97  2.3  8.5  2.3  56 
YE4-90S-4 1.1  2.6  1445  87.2  0.75  7.27  2.3  8.5  2.3  59 
YE4-90L-4 1.5  3.4  1445  88.2  0.76  9.91  2.3  9.0  2.3  59 
YE4-100L1-4 2.2  4.7  1450  89.5  0.79  14.5  2.3  9.0  2.3  64 
YE4-100L2-4 3  6.3  1450  90.4  0.80  19.8  2.3  9.5  2.3  64 
YE4-112M-4 4  8.3  1460  91.1  0.80  26.2  2.3  9.5  2.3  65 
YE4-132S-4 5.5  11.4  1475  91.9  0.80  35.6  2.0  9.5  2.3  71 
YE4-132M-4 7.5  15.2  1470  92.6  0.81  48.7  2.0  9.5  2.3  71 
YE4-160M-4 11  21.6  1470  93.3  0.83  71.5  2.0  9.5  2.3  73 
YE4-160L-4 15  28.9  1470  93.9  0.84  97.4  2.0  9.5  2.3  73 
YE4-180M-4 18.5  35.1  1475  94.2  0.85  120  2.0  9.5  2.3  76 
YE4-180L-4 22  41.6  1475  94.5  0.85  142  2.0  9.5  2.3  76 
YE4-200L-4 30  56.5  1485  94.9  0.85  193  2.0  9.0  2.3  76 
YE4-225S-4 37  69.5  1490  95.2  0.85  237  2.0  9.0  2.3  78 
YE4-225M-4 45  84.3  1485  95.4  0.85  289  2.0  9.0  2.3  78 
YE4-250M-4 55  102  1485  95.7  0.86  354  2.0  9.0  2.3  79 
YE4-280S-4 75  136  1490  96.0  0.87  481  2.0  8.5  2.3  80 
YE4-280M-4 90  162  1490  96.1  0.88  577  2.0  8.5  2.3  80 
YE4-315S-4 110  195  1490  96.3  0.89  705  1.8  8.5  2.2  88 
YE4-315M-4 132  234  1490  96.4  0.89  846  1.8  8.5  2.2  88 
YE4-315L1-4 160  280  1490  96.6  0.90  1026  1.8  8.5  2.2  88 
YE4-315L2-4 200  349  1490  96.7  0.90  1282  1.8  8.5  2.2  88 
YE4-355M-4 250  436  1495  96.7  0.90  1597  1.8  8.5  2.2  92 
YE4-355L-4 315  550  1490  96.7  0.90  2019  1.8  8.5  2.2  92 

Type Power kW Rated current A Rotational speed r/min Eff.% P.F N.m Tst/TN Ist/IN Tmax/TN dB(A)
Synchronous speed 1000 r/min
YE4-80M1-6 0.37  1.1  940  78.0  0.68  3.76  1.9  6.0  2.1  54 
YE4-80M2-6 0.55  1.5  940  80.9  0.68  5.59  1.9  6.0  2.1  54 
YE4-90S-6 0.75  2.0  950  82.7  0.70  7.54  2.1  7.5  2.1  57 
YE4-90L-6 1.1  2.8  950  84.5  0.70  11.1  2.1  7.5  2.1  57 
YE4-100L-6 1.5  3.7  960  85.9  0.71  14.9  2.1  7.5  2.1  61 
YE4-112M-6 2.2  5.4  975  87.4  0.71  21.5  2.1  7.5  2.1  65 
YE4-132S-6 3  7.2  985  88.6  0.71  29.1  2.0  7.5  2.1  69 
YE4-132M1-6 4  9.4  985  89.5  0.72  38.8  2.0  8.0  2.1  69 
YE4-132M2-6 5.5  12.8  980  90.5  0.72  53.6  2.0  8.0  2.1  69 
YE4-160M-6 7.5  16.4  980  91.3  0.76  73.1  2.0  8.0  2.1  73 
YE4-160L-6 11  23.5  980  92.3  0.77  107  2.0  8.5  2.1  73 
YE4-180L-6 15  30.7  990  92.9  0.80  145  2.0  8.5  2.1  73 
YE4-200L1-6 18.5  37.6  990  93.4  0.80  178  2.0  8.5  2.1  73 
YE4-200L2-6 22  44.0  990  93.7  0.81  212  2.0  8.5  2.1  73 
YE4-225M-6 30  59.0  990  94.2  0.82  289  2.0  8.3  2.1  74 
YE4-250M-6 37  71.7  990  94.5  0.83  357  2.0  8.3  2.1  76 
YE4-280S-6 45  86.9  990  94.8  0.83  434  2.0  8.5  2.0  78 
YE4-280M-6 55  105  990  95.1  0.84  531  2.0  8.5  2.0  78 
YE4-315S-6 75  142  990  95.4  0.84  723  1.6  8.0  2.0  83 
YE4-315M-6 90  168  990  95.6  0.85  868  1.6  8.0  2.0  83 
YE4-315L1-6 110  205  990  95.8  0.85  1061  1.6  8.0  2.0  83 
YE4-315L2-6 132  243  990  96.0  0.86  1273  1.6  8.0  2.0  83 
YE4-315L3-6 160  294  990  96.2  0.86  1543  1.6  8.0  2.0  83 
YE4-355M2-6 200  367  995  96.3  0.86  1920  1.6  8.0  2.0  85 
YE4-355L-6 250  458  995  96.5  0.86  2399  1.6  8.0  2.0  85 

Type Power kW Rated current A Rotational speed r/min
Eff.%		 P.F N.m Tst/TN Ist/IN Tmax/TN dB(A)
Synchronous speed 750 r/min
YE4-90S-8 0.37  1.3  695  74.3  0.60  5.08  1.8  6.2  1.9  56 
YE4-90L-8 0.55  1.8  695  77.0  0.61  7.56  1.8  5.9  2.0  56 
YE4-100L1-8 0.75  2.2  705  78.4  0.66  10.2  2.0  7.0  2.0  59 
YE4-100L2-8 1.1  3.1  705  80.8  0.67  14.9  2.0  7.0  2.0  59 
YE4-112M-8 1.5  4.0  710  82.6  0.69  20.2  2.0  7.0  2.0  61 
YE4-132S-8 2.2  5.7  730  84.5  0.70  28.8  1.8  7.5  2.0  64 
YE4-132M-8 3  7.6  730  85.9  0.70  39.2  1.8  7.8  2.0  64 
YE4-160M1-8 4  9.8  730  87.1  0.71  52.3  1.8  7.9  2.0  68 
YE4-160M2-8 5.5  13.1  730  88.3  0.72  72.0  1.8  8.1  2.0  68 
YE4-160L-8 7.5  17.2  730  89.3  0.74  98.1  1.8  7.8  2.0  68 
YE4-180L-8 11  25.0  735  90.4  0.74  143  1.8  7.9  2.0  70 
YE4-200L-8 15  33.3  735  91.2  0.75  195  1.8  8.0  2.0  73 
YE4-225S-8 18.5  40.9  735  91.7  0.75  240  1.8  8.1  2.0  73 
YE4-225M-8 22  47.8  735  92.1  0.76  286  1.8  8.3  2.0  73 
YE4-250M-8 30  63.9  740  92.7  0.77  387  1.8  7.9  2.0  75 
YE4-280S-8 37  77.4  740  93.1  0.78  478  1.8  7.9  2.0  76 
YE4-280M-8 45  93.8  740  93.4  0.78  581  1.8  7.9  2.0  76 
YE4-315S-8 55  111  750  93.7  0.80  700  1.6  8.2  2.0  82 
YE4-315M-8 75  151  750  94.2  0.80  955  1.6  7.6  2.0  82 
YE4-315L1-8 90  179  750  94.4  0.81  1146  1.6  7.7  2.0  82 
YE4-315L2-8 110  218  750  94.7  0.81  1401  1.6  7.7  2.0  82 
YE4-355M1-8 132  260  750  94.9  0.81  1681  1.6  7.7  2.0  89 
YE4-355M2-8 160  312  750  95.1  0.82  2037  1.6  7.7  2.0  89 
YE4-355L-8 200  388  750  95.4  0.82  2547  1.6  7.8  2.0  89 

YE3/YE4 Mounting Dimensions

frame
size		 flange
size		 poles Mounting dimensions Flange holes Outline dimensions
A A2 B C D E F G H K M N P R S T AB AC AD HD L
63M FF115 2.4  100I 50  80  40  11  23  4  8.5  63  7  115  95  140  0  10  3  4  135  130  70  180  240 
71M FF130 2.4.6 112  56  92  45  14  30  5  11  71  130  110  160  150  145  80  195  270 
80M FF165 2.4.6.8 125  62.5  100  50  19  40  6  15.5  80  10  165  130  200  12  3.5  165  175I 145  220  305 
90S 140  70  100  56  24  50  8  20  90  180  195  155  250  360 
90L 125  390 
100L FF215 160  80  140  63  28  60  24  100  12  215  180  250  14.5  4  205  215  180  270  435 
112M 190I 95  140  70  112  230  240  190  300  470 
132S FF265 216  108  140  89  38  80  10  33  132  265  230  300  270  275  210  345  510 
132M 178  560 
160M FF300 254  127  210  108  42  110  12  37  160  14.5  300  250  350  18.5  5  320  330  255  420  670 
160L 254  700 
180M 279  139.5  241  121  48  14  42.5  180  355  380  280  455  740 
180L 279  790 
200L FF350 318  159  305  133  55  16  49  200  18.5  350  300  400  395  420  305  505  790 
225S FF400 4.8  356  178  286  149[ 60  140  18  53  225  400  350  450  8  435  470  335  560  830 
225M 2  311  55  110  16  49  825 
4.6.8 60  140  18  53  855 
250M FF500 2  406  203  349  168  250  24  500  450  550  490  510  370  615  935 
4.6.8 65  58  935 
280S 2  457  228.5  368  190- 280  550  580|4 10  680  995 
4.6.8 75  20  67.5  995 
280M 2  419  65  18  58  1045 
4.6.8 75  20  67.5  1045 
315S FF600 2  508  254  406  216  65  18  58  315  28  600  550  660  24  6  635  645  490  800  1180 
4.6.8.10 80  170  22  71  1225 
315M 2  457  65  140  18  58  1290 
4.6.8.10 80  170  22  71  1335 
315L 2  508  65  140  18  58  1290 
4.6.8.10 80  170  22  71  1335 
355M FF740 2  610  305  560  254  75  140  20  67.5  355  740  680  800  730  710  555  910  1500 
4.6.8.10 95  170  25  86  1550 
355L 2  630  75  140  20  67.5  1500 
4.6.8.10 95  170  25  86  1550 

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About Liyuan

Taizhou Liyuan Motor Co., Ltd., based in Taizhou, Zhejiang – China's manufacturing heartland – is a certified technology-driven enterprise with additional facilities in Shanghai and Lu’an.

We specialize in nine motor series: IE3/IE4 high-efficiency motors, YE3/YE4 aluminum-housed motors, YEJ braking motors, YVF variable-frequency motors, YB explosion-proof motors, YD/YDT multi-speed motors, and YCT speed-regulating motors. Ranging from 0.55kW to 315kW, our products serve construction, mining, port machinery, pumps, fans, and reducers.

With sales offices across all major provincial capitals, we provide nationwide after-sales support. Guided by our philosophy — “The market knows no bounds, and integrity leads to success” — we are committed to innovation and long-term partnership with our customers.

Taizhou Liyuan Motor Co., Ltd. More About Us Taizhou Liyuan Motor Co., Ltd.
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