Mitsubishi S6B3-PTA vs VMAN D11B
The Mitsubishi S6B3-PTA and VMAN D11B are both diesel generator engines in a similar power class. Both are rated at roughly 439 kVA. Displacement is 14.6 L versus 10.964 L. The table below compares their full specifications side by side.
| Specification | Mitsubishi S6B3-PTA | VMAN D11B |
|---|---|---|
| Headline rating | 439 kVA | 439 kVA |
| Standby (50 Hz) | 351.2 kWe | — |
| Prime (50 Hz) | 318.4 kWe | — |
| Standby (60 Hz) | 394.4 kWe | 351 kWe |
| Prime (60 Hz) | 356 kWe | 308 kWe |
| Displacement | 14.6 L | 10.964 L |
| Configuration | L6 | V6 |
| Cylinders | 6 | 6 |
| Rated speed | 1,500 / 1,800 RPM | 1,800 RPM |
| Fuel | Diesel | Diesel |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Emissions | Unregulated | Unregulated |
| Dry weight | 1550 kg | — |
| Origin | Japan | China |
Choosing between Mitsubishi S6B3-PTA and VMAN D11B
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.