
Flame Proof Motor YBX3 series high-efficiency high-voltage explosion-proof three-phase asynchronous motor adopts cast iron base, featuring compact structure, high protection level, easy installation and maintenance, etc. Through further optimised design and careful manufacturing, it has the advantages of high efficiency and energy saving, reliable performance, low noise, low vibration, long service life, etc. The energy efficiency indexes have reached the first grade of energy efficiency in GB30254-2013. This series of motors are suitable for driving various fans, compressors, pumps, machine tools, transport machinery and other general machinery and equipment, and are used as prime movers in various industrial and mining enterprises such as mines, iron and steel, machinery, petroleum, chemical industry and power stations, etc. The explosion-proof performance of this series of motors meets the requirements of GB30254-2013.
Flame Proof performance of this series of motors is in line with GB 3836.1-2010 "Explosive Environment Part 1: General Requirements for Equipment" and GB 3836.2-2010 "Explosive Environment Part 2: Equipment Protected by Flame-proof Shell "d"", and is made into a flame-proof type, with explosion-proof grade of Exd Ⅰ Mb, ExdⅡBT4 Gb, ExdⅡCT4 Gb, mainly used in places with explosive gas mixtures.
The shell protection grade of standard motor is IP55, and it can reach IP55 or above according to customer's requirement.
The mounting method of standard motor is IMB3, and other mounting methods are available.
The cooling method of the motor is IC411 or IC416.


Rated voltage: 3000V, 6000V or 10000V, allowable deviation ±5 per cent
Rated frequency: 50Hz, allowable deviation ±1%; can also be made into frequency conversion motor according to user requirements
Ambient air temperature: -20℃~+40℃ (0℃~+40℃ when sliding bearing is used)
Altitude: not more than 1000m
Working mode: S1 continuous working system
Transmission mode: coupling transmission, if other transmission mode
Basic Features
1. Machine base number: 355-710
2. Power range: 185kW~2240kW
3. Voltage: 3000V~11000V 4.
4. Frequency: 50Hz/60Hz 5.
5. Number of poles: 2P~12P
6. Thermal classification: 155(F)
7. Temperature rise limit: 80K (B class), 105K (F class) (each seat number, each pole number maximum one power)
8. Vibration speed: 2.3mm/s
9. Efficiency: Grade 1 energy efficiency. Comply with GB30254-2013 High-voltage three-phase cage asynchronous motor energy efficiency limit value and energy efficiency class Energy efficiency level 1.
10. Cooling method: IC411
11. Installation method: IMB3 (can also be made into IMB35, IMV1)
12. Protection grade: IP55
13. Operation mode: S1
14. Explosion-proof level: Exd Ⅰ Mb, Exd Ⅱ B T4 Gb Exd Ⅱ C T4 Gb
15. Environment: temperature -20 ~ +40 ℃, altitude not higher than 1000m
16. Indoor (standard configuration)
Optional: outdoor (W), outdoor anti-medium corrosion (WF1), outdoor strong corrosion (WF2), indoor anti-medium corrosion (F1), indoor anti-medium
Corrosion (F1), indoor anti-strong corrosion (F2), hot and humid tape (TH), dry heat tape (TA), outdoor hot and humid tape (THW),
Outdoor dry heat tape (TAW)
Contact: Albert Liu
Tel: 86 19933582907
E-mail: albert@milestonemotor.com
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