Perkins 401246TAG4A vs SDEC 12KTA58-G34
The Perkins 401246TAG4A and SDEC 12KTA58-G34 are both diesel generator engines in a similar power class. Both are rated at roughly 1,929 kVA. Displacement is 46 L versus 58 L. The table below compares their full specifications side by side.
| Specification | Perkins 401246TAG4A | SDEC 12KTA58-G34 |
|---|---|---|
| Headline rating | 1,923 kVA | 1,935 kVA |
| Standby (50 Hz) | 1,538 kWe | 1,548 kWe |
| Prime (50 Hz) | 1,401 kWe | 1,404 kWe |
| Standby (60 Hz) | — | — |
| Prime (60 Hz) | — | — |
| Displacement | 46 L | 58 L |
| Configuration | V12 | V12 |
| Cylinders | 12 | 12 |
| 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 | — | — |
| Origin | India / United Kingdom | China |
Choosing between Perkins 401246TAG4A and SDEC 12KTA58-G34
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-G34 has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.