1. Brief Introduction
YB2D Series of Flame-proof Changeable Multi-rotation Three-phase induction Motors are suitable for powder driving in the non-digging area of underground mine as well as the factory with working places full of explosive gas mixtures. The motor realizes the different rotations through the automatic speed shifts. YD Series of Changeable Multi-rotation Three-phase Induction Motors are suitable for the factory with
working places of non-explosive gas mixtures. YDT Series is suitable for the places in mine, metallurgy, textile, chemical industry, light industry and civil facilities, where need adjust the blowing volume of fans and the flux of water pump according to seasons and temperatures,
YB2D and YD are the same in electric performance, YB2D Series of Motors have the same installation size with YB2 Series Motors and YD,YDT Series of Motors are same with Y2 Series of Motors concerning the installation size.
The explosion-proof performance of YB2D Series of Motors reaches the standards in GB3836.1-20000 Electric Equipment for Using in the Explosive Gas Environment part 1:Currency Need and GB3836.2-2000 Electric Equipment for Using in the Explosive Gas Environment part 2:Flame-proof"d" to form the flame-proof types of ExdⅠ\and ExdⅡ BT4.


2. Main Technical Parameters:
1.Rated Voltage: 380V\380/660V\1140V
2.Rated Frequency: 50Hz
3.Protection Level: IP55
4.Cooling Method: IC411
5.Working System: S1
6.Insulation Grade: F
7.Installation Type: IMB3\IMB5\IMB35