Introduction to the YKS-630 Series Motor
The YKS-630 Series Motor is primarily designed for high-power, heavy-duty, and continuous-operation equipment drive applications , particularly in the energy and power industries , including:
Thermal Power Plants : Driving boiler feedwater pumps, induced draft (ID) fans, forced draft (FD) fans, etc.
Hydropower Stations : Used for auxiliary turbine equipment or large-scale water pumps.
Nuclear Power Plants : Applications such as circulating cooling water pumps and emergency backup systems.
The YKS Series Motor , developed by SIMO Motors , is a high-efficiency, high-voltage motor engineered for high-power, heavy-load operations . It features energy savings, durability, and ease of installation and maintenance , complying with the IE3 energy efficiency standard and making it ideal for energy-saving retrofit projects.
Widely adopted in power plants across China, the YKS Series Motor has earned recognition for its high efficiency and energy-saving performance , playing an indispensable role in the country's energy efficiency reforms.
The series has obtained international certifications, including:
European "CE"
American "UL"
China's compulsory "CCC"
With its superior quality , the YKS Series Motor is exported worldwide, receiving extensive acclaim and attention .
For more information about high-voltage motors, please contact: sales@simo-motor.com.cn
Model Number Explanation
SIMO YKS Series High-Voltage Three-Phase Asynchronous Motor Model Number Explanation
Taking YKS6302-4 as an example:
"YKS" : Enclosed squirrel-cage rotor asynchronous motor with air-to-water cooler .
"6302" : Frame center height = 630mm ; "2" indicates the first iron core length .
"4" : Number of poles (4-pole motor ).
YKS Series High Voltage Motor (6KV/10KV/Customizable) – Key Specifications:
Frame Size: 355–630 (6KV); 400–800 (10KV)(Customizable)
Rated Voltage: 6KV / 10KV (Customizable)
Rated Frequency: 50Hz
Speed: 3000rpm, 1500rpm, 1000rpm, 750rpm
Power Range: 220–3150KW
Mounting Type: IMB3
Protection Class: IP44 / IP54
Cooling Method: IC81W
Insulation Class: F
Ambient Temperature: Seasonal variations, max. 40°C; min. -15°C
Humidity: Max. 90% relative humidity in the wettest month, with an average monthly low ≤25°C.
YKS Series High Voltage Motor Overview:
1.The YKS Series 6KV/10KV (Customizable) three-phase induction motor (6KV: frame size 355–630; 10KV: frame size 400–800) features a squirrel-cage rotor design. It complies with JB/T 7593-2007 and JB/T 10315.1 technical standards.
2.Advantages include high efficiency, energy savings, low noise, minimal vibration, lightweight construction, reliable performance, and easy installation/maintenance.
Technical data sheet
| Type | Rated Power (kW) | Rated Current (A) | Speed (r/min) | Efficiency (%) | Power Factor (cos Φ) | Max. Torque / Rated Torque | Locked Torque / Rated Torque | Locked Current / Rated Current | J (Motor) (Kg.m²) | J (Load) (Kg.m²) | Y Mass (kg) | YKS Mass (kg) | Lubrication Time (h) |
| Y.YKS6301-2 | 2500 | 281 | 2980 | 96.2 | 0.89 | 1.8 | 0.6 | 7 | 37.6 | 105 | 7600 | 8620 | 500 |
| Y.YKS6302-2 | 2800 | 314.4 | 2980 | 96.3 | 0.89 | 1.8 | 0.6 | 7 | 41.5 | 111 | 7890 | 8950 | 500 |
| Y.YKS6303-2 | 3150 | 353.7 | 2980 | 96.3 | 0.89 | 1.8 | 0.6 | 7 | 45.9 | 117 | 8170 | 9280 | 500 |
| Y.YKS6301-4 | 2240 | 252.3 | 1485 | 96 | 0.89 | 1.8 | 0.6 | 6.5 | 99 | 405 | 7550 | 8531 | 1000 |
| Y.YKS6302-4 | 2500 | 281.3 | 1485 | 96.1 | 0.89 | 1.8 | 0.6 | 6.5 | 113.5 | 437 | 7950 | 8475 | 1000 |
| Y.YKS6303-4 | 2800 | 314.7 | 1485 | 96.2 | 0.89 | 1.8 | 0.6 | 6.5 | 127.8 | 473 | 8570 | 9684 | 1000 |
| Y.YKS6301-6 | 1600 | 187.1 | 990 | 95.7 | 0.86 | 1.8 | 0.7 | 6.5 | 137.5 | 954 | 6930 | 7770 | 2000 |
| Y.YKS6302-6 | 1800 | 210.2 | 990 | 95.8 | 0.86 | 1.8 | 0.7 | 6.5 | 152.8 | 1050 | 7310 | 8200 | 2000 |
| Y.YKS6303-6 | 2000 | 233.3 | 990 | 95.9 | 0.86 | 1.8 | 0.7 | 6.5 | 170.3 | 1142 | 7690 | 8620 | 2000 |
| Y.YKS6301-8 | 1120 | 135.1 | 740 | 95 | 0.84 | 1.8 | 0.7 | 6 | 137.5 | 1820 | 6330 | 7170 | 2000 |
| Y.YKS6302-8 | 1250 | 150.6 | 740 | 95.1 | 0.84 | 1.8 | 0.7 | 6 | 152.8 | 2000 | 6810 | 7760 | 2000 |
| Y.YKS6303-8 | 1400 | 168.5 | 740 | 95.2 | 0.84 | 1.8 | 0.7 | 6 | 167.8 | 2210 | 7390 | 8360 | 2000 |
| Y.YKS6304-8 | 1600 | 192.3 | 740 | 95.3 | 0.84 | 1.8 | 0.7 | 6 | 182.8 | 2470 | 7770 | 8800 | 2000 |
| Y.YKS6301-10 | 1000 | 124.3 | 590 | 94.4 | 0.82 | 1.8 | 0.7 | 6 | 157.8 | 2870 | 7160 | 8091 | 3000 |
| Y.YKS6302-10 | 1120 | 138.9 | 590 | 94.6 | 0.82 | 1.8 | 0.7 | 6 | 165 | 3170 | 7530 | 8508 | 3000 |
| Y.YKS6303-10 | 1250 | 154.7 | 590 | 94.8 | 0.82 | 1.8 | 0.7 | 6 | 185 | 3490 | 8000 | 9040 | 3000 |
| Y.YKS6304-10 | 1400 | 173.1 | 590 | 94.9 | 0.82 | 1.8 | 0.7 | 6 | 200 | 3850 | 8230 | 9299 | 3000 |
| Y.YKS6301-12 | 710 | 92 | 495 | 94 | 0.79 | 1.8 | 0.7 | 6 | 147.8 | 3310 | 7050 | 7966 | 3000 |
| Y.YKS6302-12 | 800 | 103.4 | 495 | 94.2 | 0.79 | 1.8 | 0.7 | 6 | 170.3 | 3690 | 7570 | 8554 | 3000 |
| Y.YKS6303-12 | 900 | 116.3 | 495 | 94.3 | 0.79 | 1.8 | 0.7 | 6 | 185 | 4100 | 7860 | 8881 | 3000 |
| Y.YKS6304-12 | 1000 | 129 | 495 | 94.4 | 0.79 | 1.8 | 0.7 | 6 | 200 | 4550 | 8180 | 9243 | 3000 |
| Type | Rated Power (kW) | Rated Current (A) | Speed (r/min) | Efficiency (%) | Power Factor (cos Φ) | Max. Torque / Rated Torque | Locked Torque / Rated Torque | Locked Current / Rated Current | J (Motor) (kg·m²) | J (Load) (kg·m²) | Y Mass (kg) | YKS Mass (kg) | Lubrication Time (h) |
| Y.YKS6301-2 | 1800 | 120.6 | 2970 | 95.7 | 0.9 | 1.8 | 0.6 | 7 | 33 | 86 | 7520 | 8320 | 500 |
| Y.YKS6302-2 | 2000 | 133.9 | 2970 | 95.8 | 0.9 | 1.8 | 0.6 | 7 | 36 | 92 | 7830 | 8630 | 500 |
| Y.YKS6303-2 | 2240 | 149.7 | 2970 | 96 | 0.9 | 1.8 | 0.6 | 7 | 40 | 96 | 8150 | 8950 | 500 |
| Y.YKS6301-4 | 1800 | 121.7 | 1490 | 95.9 | 0.89 | 1.8 | 0.6 | 7 | 97 | 572 | 7140 | 7925 | 1000 |
| Y.YKS6302-4 | 2000 | 135.1 | 1490 | 96 | 0.89 | 1.8 | 0.6 | 7 | 108 | 605 | 7490 | 8314 | 1000 |
| Y.YKS6303-4 | 2240 | 151.2 | 1490 | 96.1 | 0.89 | 1.8 | 0.6 | 7 | 121 | 650 | 7890 | 8758 | 1000 |
| Y.YKS6301-6 | 1400 | 98.2 | 990 | 95.7 | 0.86 | 1.8 | 0.6 | 6 | 121 | 693 | 7390 | 7559 | 2000 |
| Y.YKS6302-6 | 1600 | 112.1 | 990 | 95.8 | 0.86 | 1.8 | 0.6 | 6 | 135 | 981 | 7130 | 7914 | 2000 |
| Y.YKS6303-6 | 1800 | 126 | 990 | 95.9 | 0.86 | 1.8 | 0.6 | 6 | 151 | 1010 | 7490 | 8314 | 2000 |
| Y.YKS6301-8 | 1000 | 73.2 | 740 | 95 | 0.83 | 1.8 | 0.7 | 6 | 130 | 2502 | 6630 | 7126 | 2000 |
| Y.YKS6302-8 | 1120 | 81.8 | 740 | 95.2 | 0.83 | 1.8 | 0.7 | 6 | 140 | 2980 | 6600 | 7326 | 2000 |
| Y.YKS6303-8 | 1250 | 91.2 | 740 | 95.3 | 0.83 | 1.8 | 0.7 | 6 | 155 | 3410 | 7350 | 8630 | 2000 |
| Y.YKS6301-10 | 800 | 61.2 | 595 | 94.3 | 0.8 | 1.8 | 0.7 | 6 | 140 | 2510 | 6970 | 7248 | 3000 |
| Y.YKS6302-10 | 900 | 68.7 | 595 | 94.5 | 0.8 | 1.8 | 0.7 | 6 | 153 | 2842 | 6790 | 7537 | 3000 |
| Y.YKS6303-10 | 1000 | 76.3 | 595 | 94.6 | 0.8 | 1.8 | 0.7 | 6 | 165 | 3310 | 7040 | 7814 | 3000 |
| Y.YKS6304-10 | 1120 | 85.3 | 595 | 94.7 | 0.8 | 1.8 | 0.7 | 6 | 183 | 4315 | 7290 | 8092 | 3000 |
| Y.YKS6301-12 | 560 | 46.7 | 495 | 93.5 | 0.74 | 1.8 | 0.7 | 6 | 140 | 4250 | 6720 | 7392 | 3000 |
| Y.YKS6302-12 | 630 | 52.5 | 495 | 93.7 | 0.74 | 1.8 | 0.7 | 6 | 152 | 4780 | 6990 | 7689 | 3000 |
| Y.YKS6303-12 | 710 | 59 | 495 | 93.9 | 0.74 | 1.8 | 0.7 | 6 | 160 | 5480 | 7230 | 7953 | 3000 |
| Y.YKS6304-12 | 800 | 66.2 | 495 | 94.3 | 0.74 | 1.8 | 0.7 | 6 | 183 | 6140 | 7640 | 8480 | 3000 |
Installation Dimension Drawing


Applications of YKS Series Motors
(1) Energy & Power Industry
Thermal Power Plants: Boiler feed pumps, induced draft fans, forced draft fans.
Hydropower Stations: Auxiliary turbine equipment, large water pumps.
Nuclear Plants: Cooling water circulation pumps, emergency backup systems.
(2) Oil & Gas
Oilfield Extraction: Water injection pumps, compressors, oil transfer pumps.
Gas Transmission: Pipeline booster station compressors.
(3) Mining & Metallurgy
Mining Equipment: Ball mills, crushers, hoists, ventilation fans.
Steel Plants: Rolling mills, blowers, sintering machines.
(4) Building Materials & Cement Industry
Cement Production: Raw material mills, rotary kilns, fans, dust removal systems.
(5) Chemical & Petrochemical
Chemical Plants: Reactor agitators, centrifuges, compressors.
Fertilizer/Pesticide Production: Large pumps, granulators.
(6) Water & Municipal Engineering
Water Treatment Plants: Large pumps, sewage treatment equipment.
Urban Water Supply: Booster pump stations, water transmission systems.
Key Advantages of YKS Series Motors
1. Energy Efficient: Meets IE3 efficiency standards , ideal for energy-saving retrofits.
2. Wide Adaptability: IP54/IP55 protection , suitable for humid, dusty, or high-temperature environments.
3. High Reliability: Premium insulation materials ensure long-term continuous operation .
Choose Power Plant High-Voltage Motor, Choose Simo, Choose Quality! Contact email: sales@simo-motor.com.cn
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