Baudouin 6M21G440/5 vs Mitsubishi S6B3-PTA
The Baudouin 6M21G440/5 and Mitsubishi S6B3-PTA are both diesel generator engines in a similar power class. Both are rated at roughly 440 kVA. Displacement is 12.6 L versus 14.6 L. The table below compares their full specifications side by side.
| Specification | Baudouin 6M21G440/5 | Mitsubishi S6B3-PTA |
|---|---|---|
| Headline rating | 440 kVA | 439 kVA |
| Standby (50 Hz) | 352 kWe | 351.2 kWe |
| Prime (50 Hz) | 320 kWe | 318.4 kWe |
| Standby (60 Hz) | 352 kWe | 394.4 kWe |
| Prime (60 Hz) | 318 kWe | 356 kWe |
| Displacement | 12.6 L | 14.6 L |
| Configuration | L6 | L6 |
| Cylinders | 6 | 6 |
| Rated speed | 1,500 / 1,800 RPM | 1,500 / 1,800 RPM |
| Fuel | Diesel | Diesel |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Emissions | Unregulated | Unregulated |
| Dry weight | — | 1550 kg |
| Origin | France | Japan |
Choosing between Baudouin 6M21G440/5 and Mitsubishi S6B3-PTA
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 Baudouin 6M21G440/5 has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.