Cummins QSG12-G1 vs Lister Petter LP612EG3
Compare Cummins QSG12-G1 and Lister Petter LP612EG3 by recorded output, operating duty, frequency and engine specifications. Their listed displacements are 11.8 L and 11.8 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-G1 | Lister Petter LP612EG3 |
|---|---|---|
| Standby electrical (50 Hz) | 327 kWe | 328 kWe |
| Prime electrical (50 Hz) | 296 kWe | 300 kWe |
| Standby electrical (60 Hz) | Not listed | 328 kWe |
| Prime electrical (60 Hz) | Not listed | 300 kWe |
| Other recorded mechanical power (duty unspecified) | 332 kW | 370 kW |
| Displacement | 11.8 L | 11.8 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 | Not listed | Euro Stage III |
| Dry weight | Not listed | Not listed |
| Origin | Not listed | United Kingdom |
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-G1: Review the model record and available supporting documents
Lister Petter LP612EG3: Review the model record and available supporting documents
Choosing between Cummins QSG12-G1 and Lister Petter LP612EG3
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.