... . Alternator, 3) Stamford Type of Electric Generator, 4) Three Phase optional, IP23, Class H, 5) Rated voltage 400V, 110-690V ... networks or other genetator sets, 9) Balance rotor with single or two sealed ball bearings available, 10) Convenient installation ... ) Three phase, single phase for option 3) Drip-leak-proof structure: IP22 protection class 4) Insulation class H 5) Adjusting rate of stable ...