Energy Saving 55KW Permanent Magnetic Generator 10 Year Service Life IE4 Product Overview The 55KW permanent magnetic generator uses a brushless rare earth rotor with sealed C3 bearings and is designed for long term operation. IE4 efficiency reduces electrical losses so the running cost over the service life is lower than a conventional machine of the same rating. Key Features Brushless rare earth rotor with no brush or slip ring wear IE4 efficiency for lower running cost