Rated Frequency(hz): 50 60 Rated Voltage(v): 110, 115, 120, 220, 230, 240, 110/220, 115/230, 120/240 Rated Output Power(kva): 4.5 5.0 Max Output Power(kva): 5.0 5.5 Rated Rotation Speed(rpm): 3000 3600 Power Factor (cos): 1.0 Phase Number: Single Phase Noise Level 75-79 Excitation Mode: Self-excitation Brushless Engine Model: DM186F/E Engine Type: Single Cylinder, 4-Stroke, air-cooling, Direct Injection, Diesel Engine Displacement MI Cu.