Cummins VTA28G7 vs VMAN D30B4
The Cummins VTA28G7 and VMAN D30B4 are both diesel generator engines in a similar power class. Both are rated at roughly 950 kVA. Displacement is 28 L versus 29.235 L. The table below compares their full specifications side by side.
| Specification | Cummins VTA28G7 | VMAN D30B4 |
|---|---|---|
| Headline rating | 944 kVA | 956 kVA |
| Standby (50 Hz) | — | — |
| Prime (50 Hz) | — | — |
| Standby (60 Hz) | 755 kWe | 765 kWe |
| Prime (60 Hz) | — | 675 kWe |
| Displacement | 28 L | 29.235 L |
| Configuration | V12 | V16 |
| Cylinders | 12 | 16 |
| Rated speed | 1,800 RPM | 1,800 RPM |
| Fuel | Diesel | Diesel |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Emissions | Unregulated | Unregulated |
| Dry weight | — | — |
| Origin | India | China |
Choosing between Cummins VTA28G7 and VMAN D30B4
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. The VMAN D30B4 has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.