Cummins VTA28G5 vs Perkins 2806A-E18TAG2
The Cummins VTA28G5 and Perkins 2806A-E18TAG2 are both diesel generator engines in a similar power class. Both are rated at roughly 700 kVA. Displacement is 28 L versus 18 L. The table below compares their full specifications side by side.
| Specification | Cummins VTA28G5 | Perkins 2806A-E18TAG2 |
|---|---|---|
| Headline rating | 700 kVA | 700 kVA |
| Standby (50 Hz) | 560 kWe | 560 kWe |
| Prime (50 Hz) | 509 kWe | 520 kWe |
| Standby (60 Hz) | 600 kWe | 550 kWe |
| Prime (60 Hz) | 547 kWe | 500 kWe |
| Displacement | 28 L | 18 L |
| Configuration | V12 | L6 |
| Cylinders | 12 | 6 |
| Rated speed | 1,500 / 1,800 RPM | 1,500 / 1,800 RPM |
| Fuel | Diesel | Diesel |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Emissions | Unregulated | Unregulated |
| Dry weight | — | — |
| Origin | India | United Kingdom |
Choosing between Cummins VTA28G5 and Perkins 2806A-E18TAG2
Use this comparison as an engineering shortlist, then confirm the complete generator package against load profile, voltage, 50/60 Hz frequency, duty class, emissions rules, cooling margin, altitude, ambient temperature, enclosure design, controller features, and alternator sizing.