SDEC SC25K930D2 vs VMAN D22B1
The SDEC SC25K930D2 and VMAN D22B1 are both diesel generator engines in a similar power class. Both are rated at roughly 769 kVA. Displacement is 25 L versus 21.927 L. The table below compares their full specifications side by side.
| Specification | SDEC SC25K930D2 | VMAN D22B1 |
|---|---|---|
| Headline rating | 770 kVA | 768 kVA |
| Standby (50 Hz) | 616 kWe | — |
| Prime (50 Hz) | 560 kWe | — |
| Standby (60 Hz) | — | 614 kWe |
| Prime (60 Hz) | — | 558 kWe |
| Displacement | 25 L | 21.927 L |
| Configuration | L6 | V12 |
| Cylinders | 6 | 12 |
| Rated speed | 1,500 RPM | 1,800 RPM |
| Fuel | Diesel | Diesel |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Emissions | China National Stage II / Unregulated | Unregulated |
| Dry weight | — | — |
| Origin | China | China |
Choosing between SDEC SC25K930D2 and VMAN D22B1
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 SDEC SC25K930D2 has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.