Mitsubishi S6A3-PTAA vs SDEC 6JTAA17-G33
The Mitsubishi S6A3-PTAA and SDEC 6JTAA17-G33 are both diesel generator engines in a similar power class. Both are rated at roughly 572 kVA. Displacement is 18.56 L versus 17 L. The table below compares their full specifications side by side.
| Specification | Mitsubishi S6A3-PTAA | SDEC 6JTAA17-G33 |
|---|---|---|
| Headline rating | 574 kVA | 569 kVA |
| Standby (50 Hz) | 459.2 kWe | 455 kWe |
| Prime (50 Hz) | 418.4 kWe | 414 kWe |
| Standby (60 Hz) | — | — |
| Prime (60 Hz) | — | — |
| Displacement | 18.56 L | 17 L |
| Configuration | L6 | L6 |
| Cylinders | 6 | 6 |
| Rated speed | 1,500 RPM | 1,500 RPM |
| Fuel | Diesel | Diesel |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Emissions | Unregulated | China National Stage III / Unregulated |
| Dry weight | 1800 kg | — |
| Origin | Japan | China |
Choosing between Mitsubishi S6A3-PTAA and SDEC 6JTAA17-G33
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 Mitsubishi S6A3-PTAA has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.