... Engine model: Ynagdong 4903) Alternator: Stamford, Leroy Somer, Marathon series 4) Water-cooled ,5) 8hrs operation base tank ,6) Key ... weather-proof canopy is optional ,8) 230 / 400V AC, 50Hz / 60Hz, 0.8pF three-phase and four wires alternating current output 9) Frequency ... over current B) Operation display: I) Unit voltage, tri-phase load current and frequency display Ii) Water temperature, oil ...