Mitsubishi S12R-Y2PTAW-1 vs SDEC 12KTA58-G36
The Mitsubishi S12R-Y2PTAW-1 and SDEC 12KTA58-G36 are both diesel generator engines in a similar power class. Both are rated at roughly 1,575 kVA. Displacement is 49.03 L versus 58 L. The table below compares their full specifications side by side.
| Specification | Mitsubishi S12R-Y2PTAW-1 | SDEC 12KTA58-G36 |
|---|---|---|
| Headline rating | 1,563 kVA | 1,586 kVA |
| Standby (50 Hz) | — | 1,269 kWe |
| Prime (50 Hz) | — | 1,152 kWe |
| Standby (60 Hz) | 1,250 kWe | — |
| Prime (60 Hz) | 1,125 kWe | — |
| Displacement | 49.03 L | 58 L |
| Configuration | V12 | V12 |
| Cylinders | 12 | 12 |
| Rated speed | 1,800 RPM | 1,500 RPM |
| Fuel | Diesel | Diesel |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Emissions | U.S. EPA Tier 2 | China National Stage III / Unregulated |
| Dry weight | — | — |
| Origin | Japan | China |
Choosing between Mitsubishi S12R-Y2PTAW-1 and SDEC 12KTA58-G36
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 12KTA58-G36 has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.