Cummins KTA50-G12A vs Perkins 401246TWG4A
The Cummins KTA50-G12A and Perkins 401246TWG4A are both diesel generator engines in a similar power class. Both are rated at roughly 1,605 kVA. Displacement is 50.3 L versus 46 L. The table below compares their full specifications side by side.
| Specification | Cummins KTA50-G12A | Perkins 401246TWG4A |
|---|---|---|
| Headline rating | 1,600 kVA | 1,610 kVA |
| Standby (50 Hz) | 1,280 kWe | 1,288 kWe |
| Prime (50 Hz) | 1,100 kWe | 1,204 kWe |
| Standby (60 Hz) | 1,430 kWe | 1,288 kWe |
| Prime (60 Hz) | 1,220 kWe | 1,204 kWe |
| Displacement | 50.3 L | 46 L |
| Configuration | V16 | V12 |
| Cylinders | 16 | 12 |
| 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 | China | India / United Kingdom |
Choosing between Cummins KTA50-G12A and Perkins 401246TWG4A
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 Perkins 401246TWG4A has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.