Perkins 1706J-E93TAG2 vs SDEC SC12E420D2
The Perkins 1706J-E93TAG2 and SDEC SC12E420D2 are both diesel generator engines in a similar power class. Both are rated at roughly 345 kVA. Displacement is 9.3 L versus 12 L. The table below compares their full specifications side by side.
| Specification | Perkins 1706J-E93TAG2 | SDEC SC12E420D2 |
|---|---|---|
| Headline rating | 344 kVA | 346 kVA |
| Standby (50 Hz) | 275 kWe | 277 kWe |
| Prime (50 Hz) | 249 kWe | 252 kWe |
| Standby (60 Hz) | 296 kWe | — |
| Prime (60 Hz) | 267 kWe | — |
| Displacement | 9.3 L | 12 L |
| Configuration | L6 | L6 |
| Cylinders | 6 | 6 |
| Rated speed | 1,500 / 1,800 RPM | 1,500 RPM |
| Fuel | Diesel | Diesel |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Emissions | Euro Stage V / U.S. EPA Final Tier 4 | China National Stage II / Unregulated |
| Dry weight | — | — |
| Origin | United Kingdom | China |
Choosing between Perkins 1706J-E93TAG2 and SDEC SC12E420D2
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 SC12E420D2 has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.