YB3 series high efficiency explosion proof three phase low voltage  asynchronous motors(H80~355mm)(hereunder referred to as the YB3 motor) is our company uses advanced technology from domestic and overseas, combing the actual situation of Chinese Explosion proof electric motor"s industry and market.  We design and develop of efficient basic series, YB3 series is the upgrade of YB2 series motors, which in line with the third efficiency standard level IE3. 

The motor is EX type. Explosion-proof standards are EXDIMb, EXDIIAT4 Gb, EXDIIB, EXDIICT4 Gb, respectively applicable to fixed equipmemt in coal mine and factory level with A greade II, IIB, IIC, temperature classes for T1~T4 group of sites with explosive air mixture.


Work conditions:

Rated voltage: 380/660V 660/1140V
Output power: 0.75~315KW
Poles: 2~12
Protection class: IP55/IP56
Insulation class/temperature rise: F/B H/B
Altitude:Not exceed 1000 (m)
Rated frequency: 50 HZ
Duty: continuous(S1)
Ambient temperature: -15C ~ +40C
Ex-Mark: "EXDI" or "EXDIIBT4" "EXDIICT4"

The above is the default parameters, if you have any other special requirements, you can contact us for customization.