There are E x d I and ExdIIBT4 type in YB2 ranges of three-phase asynchronous explosion proof motor according to the requirement of the application. The performance of the safety of the products is confirming to the standard of GB3836.1-2000<<Electric Equipment for Using in the Explosive Gas Environment General Equipment, part1:Currency Need>> and GB3836.2-2000<<Electric Equipment for Using in the Explosive Gas Environment General Equipment, part2:Explosion-safe d>>,This ranges of products are suitable for the non-mining working area in underground mine or where there are the explosive gas mixture in factories.