Mitsubishi S12R-Y2PTAW-1 vs Perkins 5012C-E46TAG5
Compare Mitsubishi S12R-Y2PTAW-1 and Perkins 5012C-E46TAG5 by recorded output, operating duty, frequency and engine specifications. Their listed displacements are 49.03 L and 46 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 | Mitsubishi S12R-Y2PTAW-1 | Perkins 5012C-E46TAG5 |
|---|---|---|
| Standby electrical (50 Hz) | Not listed | Not listed |
| Prime electrical (50 Hz) | Not listed | Not listed |
| Standby electrical (60 Hz) | 1,250 kWe | 1,250 kWe |
| Prime electrical (60 Hz) | 1,125 kWe | 1,127 kWe |
| Displacement | 49.03 L | 46 L |
| Configuration | V12 | V12 |
| Cylinders | 12 | 12 |
| Recorded engine speed | 1,800 RPM | 1,500 RPM |
| Fuel | Diesel | Diesel |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Recorded emissions classification | U.S. EPA Tier 2 | U.S. EPA Tier 2 |
| Dry weight | Not listed | Not listed |
| Origin | Japan | United States |
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.
Mitsubishi S12R-Y2PTAW-1: Review the model record and available supporting documents
Perkins 5012C-E46TAG5: Review the model record and available supporting documents
Choosing between Mitsubishi S12R-Y2PTAW-1 and Perkins 5012C-E46TAG5
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.