... ,IP22, Insulation Class H 3,2/3 pitch winding 4,Single or double bearing option 5,ISO9001-2008,CE certificate 450kva ... excessive neutral current.3, Dynamically balanced rotors, with single or two sealed ball bearings.4, Simple installation and maintenance with easy access ... and coupling bolts.5, Wide range of flange adaptor and single bearing coupling disc.6, Built to conform to all leading ...