Mitsubishi S6R2-PTAA vs Perkins 4006-23TAG2A
The Mitsubishi S6R2-PTAA and Perkins 4006-23TAG2A are both diesel generator engines in a similar power class. Both are rated at roughly 821 kVA. Displacement is 29.96 L versus 23 L. The table below compares their full specifications side by side.
| Specification | Mitsubishi S6R2-PTAA | Perkins 4006-23TAG2A |
|---|---|---|
| Headline rating | 821 kVA | 820 kVA |
| Standby (50 Hz) | 657 kWe | 656 kWe |
| Prime (50 Hz) | 598.5 kWe | 597 kWe |
| Standby (60 Hz) | 535.5 kWe | 660 kWe |
| Prime (60 Hz) | 486 kWe | 600 kWe |
| Displacement | 29.96 L | 23 L |
| Configuration | L6 | V6 |
| 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 | — | — |
| Origin | Japan | United Kingdom |
Choosing between Mitsubishi S6R2-PTAA and Perkins 4006-23TAG2A
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 S6R2-PTAA has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.