Mitsubishi S6R2-PTAA-C vs SDEC 6KTAA25-G32.1
The Mitsubishi S6R2-PTAA-C and SDEC 6KTAA25-G32.1 are both diesel generator engines in a similar power class. Both are rated at roughly 846 kVA. Displacement is 29.96 L versus 25 L. The table below compares their full specifications side by side.
| Specification | Mitsubishi S6R2-PTAA-C | SDEC 6KTAA25-G32.1 |
|---|---|---|
| Headline rating | 843 kVA | 849 kVA |
| Standby (50 Hz) | 674.5 kWe | — |
| Prime (50 Hz) | 612.8 kWe | — |
| Standby (60 Hz) | — | 679 kWe |
| Prime (60 Hz) | — | 616 kWe |
| Displacement | 29.96 L | 25 L |
| Configuration | L6 | L6 |
| Cylinders | 6 | 6 |
| Rated speed | 1,500 RPM | 1,800 RPM |
| Fuel | Diesel | Diesel |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Emissions | China National Stage III / Unregulated | China National Stage III / Unregulated |
| Dry weight | — | — |
| Origin | China | China |
Choosing between Mitsubishi S6R2-PTAA-C and SDEC 6KTAA25-G32.1
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 6KTAA25-G32.1 has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.