Cummins QSG12-G4 vs SDEC SC13E550D2
Compare Cummins QSG12-G4 and SDEC SC13E550D2 by recorded output, operating duty, frequency and engine specifications. Their listed displacements are 11.8 L and 13 L, respectively. Start with the same duty and frequency, then check each model’s source and package conditions. These records alone do not establish interchangeability.
| Specification | Cummins QSG12-G4 | SDEC SC13E550D2 |
|---|---|---|
| Standby electrical (50 Hz) | 364 kWe | 365 kWe |
| Prime electrical (50 Hz) | 333 kWe | 331 kWe |
| Standby electrical (60 Hz) | 418 kWe | Not listed |
| Prime electrical (60 Hz) | 383 kWe | Not listed |
| Displacement | 11.8 L | 13 L |
| Configuration | L6 | L6 |
| Cylinders | 6 | 6 |
| Recorded engine speed | 1,500 RPM | 1,500 RPM |
| Fuel | Diesel | Diesel |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Recorded emissions classification | Unregulated | China National Stage II / Unregulated |
| Dry weight | 1,110 kg | Not listed |
| Origin | China | China |
Compare matching ratings
Read across a row to compare the same operating duty and frequency. kWe is electrical output; mechanical kW is power at the engine shaft. kVA is apparent electrical power and is shown only when kWe is missing, without converting it. “Not listed” means the record lacks that rating, not zero output. Continuous and prime duties are kept separate. Check source documents, units and site conditions before comparing values.
An emissions classification in the catalog is not proof of certification for your engine or installation. Confirm the exact model, applicable documents and generator configuration.
Cummins QSG12-G4: Review the model record and available supporting documents
SDEC SC13E550D2: Review the model record and available supporting documents
Choosing between Cummins QSG12-G4 and SDEC SC13E550D2
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.