| Model No. | YDG3500SE | YDG5500SE | YDG5500SE3 |
| Rated Frequency | 50/60 Hz |
| Rated Output Power | 2.8/3.0 KW | 4.2/5.0 KW |
| Max Output Power | 3/3.3 KW | 4.5/5.5 KW |
| Rated Voltage | 232 V | 232 V | 400/230V 400/230V |
| Rated Current | 12.2A 13.0/26.1A | 18.3A 21.7/43.5A | 7.6/9.0A |
| Rated Rotation Speed | 3000/3600 rpm |
| Phase Number | Single phase | Three phase |
| Power Factor Cos | 1 | 0.8 |
| Insulation Class | F |
| Number of poles | 2 |
| Voltage Regulate Type | AVR |
| Panel Form | Normal Panel |
| Output Voltage | 230 V | 400/230 V |
| Output Form | Locking socket×2 | 230V socket×2 | 400/230 socket×1, 230V socket×1 |
| DC Output | DC12V8.3A binding post | -- |
| Size(L*W*H) | 830*532*740mm | 910*530*740mm |
| Net Weight | 60 KGS | 165 KGS |
| Gross Weight | 66 KGS | 180 KGS |
| Noise Level | 90dB | 74dB |
| Structure Form | Silent Type |
| Engine Model No. | DD178F | DD186F |
| Engine Type | Single cylinder, 4-stroke, direct injection |
| Engine Bore*Stroke | 78*62mm | 86*70mm |
| Displacement | 296cc | 406cc |
| Rated Output Power | 3.7kw / 3000rpm | 5.7kw / 3000rpm |
| Compression Ratio | 20:01 | 19:01 |
| Engine Speed | 3000rpm |
| Ignition System | Compression-ignition |
| Cooling Type | Air-cooled |
| Lubrication System | Compression-spray |
| Engine Start | Electric start, Battery 12V24AH | Electric start, Battery 12V24-36AH |
| Diesel Type | 0# (summer), -10# (winter), -35# (frost) diesel |
| Engine Oil Grade | SAE10W30（above CD grade) |
| Engine Oil Capacity | 1.1 L | 1.65 L |
| Specific Fuel Consumption | 280g/kw.h |
| Diesel Tank Capacity | 12.5 L | 15 L |
| Continuous Operation Hours | 12hr |
