... makes the whole genset compact structure,Small volume, light weight;3)Brushless, Self-excited, IP22, insulation class H ... as standard, control system with ATS(Automatic Transfer Switch) is optional ;7)Large capacity based fuel tank which ... self-exciting ,single bearingPrime Voltage400/230VFrequency 50HZPower Factor 0.8(lagging)Phase/Wire3 phase 4 wiresInsulation GradeHProtection ClassIP22Smartgen ...