| Generator Specification | |
| Generator Model | GGS-20-C |
| Frequency | 50Hz |
| Prime Power | 16kW/20kVA |
| Standby Power | 18kW/23kVA |
| Rated Voltage | 400/230V |
| Rated Current | 28.8A |
| Dimension (L x W x H) (mm) | 2100 x 960 x 1300 |
| Net Weight (KG) | 850 |
| Engine Specification | |
| Engine Brand | Cummins |
| Model | 4B3.9-G11 |
| Cooling System | Water Cooled |
| Aspiration | Naturally Aspirated |
| Fuel System | Weifu A Pump /RSV |
| Number of Cylinders | 4 Cylinder in Line |
| Cycle | 4 Stroke |
| Starting Method | Electric Start |
| Displacement | 3.9 L |
| Bore x Stroke | 102 x 120 mm |
| Compression Ratio | 18.0:1 |
| Rated Speed | 1500rpm |
| Rated Power (With Fan) | 20kW |
| Governor Type | Mechanical/Electrical |
| Alternator Specification | |
| Alternator Brand | Stamford PI144D |
| Exciter Type | Brushless, Self-excited |
| Wiring Type | 3 Phase & 4 Wire, Y Type |
| Power Factor | 0.8 |
| Prime Power | 16kW |
| Protection Grade | IP23 |
| Insulation Grade | Class H |
Source: https://genset-generator-suppliers.com/4-cylinder-diesel-generator-50hz-cummins-16kw-20kva-3-phase.html