... -315KW 3. IP44,IP54 4. Asynchronous motor YFB series for dust explosion proof three phase induction motor 1.frame: YFB801-2 2.power ... and other applications where hazardous fumes or dust may be present.6.MARK OF EXPLOSION PROOF:DIP A20,DIP A21,DIP A22,DIP ... B20,DIP B21,DIP B227.Features: to prevent the entry of the dust ...