1) 100% copper for all windings 2) 2/ 3 pitch for stator windings 3) single/ double bearing 4) brushless, self-excited, self-regulated, screen protected, drip proof, enclosure IP21 & IP23, insulation class H 5) Couple with engines of Cummins, Perkins, Deutz, Lovol, Volvo, Mitsubishi etc as prime or backup power