Mitsubishi
Mitsubishi S12R-PTA-D
S12R Series
Mitsubishi S12R-PTA-D 49.030L V12 constant-speed diesel engine for generator applications. Official MHI output without fan - 50 Hz: prime 1110 kWm at 1500 rpm; 60 Hz: prime 1010 kWm at 1800 rpm. Emissions: Unregulated.
- Prime Power · 50 Hz
- 1,318 kVA
- Electrical Output
- 1,054 kWe
- Cylinders
- V12
- Displacement
- 49.03 L
- Rated Speed
- 1,500 / 1,800 RPM
Power Ratings
kWm = mechanical shaft power · kWe = electrical output · kVA = kWe ÷ 0.8 pf · kWe estimated — see note below
50 Hz1500 RPM
| kWm | kWe | kVA | |
|---|---|---|---|
| Prime Power | 1110 | 1054.4 | 1318 |
60 Hz1800 RPM
| kWm | kWe | kVA | |
|---|---|---|---|
| Prime Power | 1010 | 959.2 | 1199 |
Note: The manufacturer does not publish a separate kWe rating for this engine. kWe values shown are estimated from the rated mechanical output (kWm) using a conservative 90% alternator efficiency factor.
Mitsubishi S12R-PTA-D generator set context
The Mitsubishi S12R-PTA-D is listed here as a diesel generator-drive engine for 50 Hz and 60 Hz generator sets, with a headline 1,318 kVA / 1,054 kWe / prime rating. Use this page to compare the published engine output, electrical kWe/kVA ratings, emissions level, datasheet availability, and neighboring models before specifying an alternator, controller, enclosure, voltage, and compliance package.
Also searched as
Technical Specifications
| Brand | Mitsubishi |
| Model | S12R-PTA-D |
| Series | S12R Series |
| Configuration | V12 |
| Cylinders | 12 |
| Displacement | 49.03 L |
| Dry Weight | 5350 kg |
| Dimensions (L×W×H) | 2325 × 1360 × 1592 mm |
| Fuel Type | Diesel |
| Ignition Type | Compression Ignition |
| Cooling Method | Liquid-Cooled |
| Emissions Standard | Unregulated |
| Country of Origin | Japan |
Frequently asked questions
What is the power output of the Mitsubishi S12R-PTA-D?
The Mitsubishi S12R-PTA-D is rated at 1,318 kVA prime at 50 Hz (1,500 rpm); and 1,199 kVA prime at 60 Hz (1,800 rpm).
Does the S12R-PTA-D run at 50 Hz or 60 Hz?
The Mitsubishi S12R-PTA-D is available for both 50 Hz (1,500 rpm) and 60 Hz (1,800 rpm).
What fuel does the Mitsubishi S12R-PTA-D use?
The Mitsubishi S12R-PTA-D is a diesel generator-set engine.
What is the displacement and cylinder configuration of the S12R-PTA-D?
The Mitsubishi S12R-PTA-D is a V12 (12-cylinder) engine with a displacement of 49.03 L.
Is the Mitsubishi S12R-PTA-D still in production?
Yes — the Mitsubishi S12R-PTA-D is a current production model.
Is a datasheet available for the S12R-PTA-D?
Yes — an official Mitsubishi datasheet for the Mitsubishi S12R-PTA-D can be downloaded from this page.
Related Engines
Compare Mitsubishi S12R-PTA-D
Reference
- Canonical page
- /engines/mitsubishi-s12r-pta-d
- Last database update
- 2026-07-23
- Manufacturer files
- 1 datasheet linked
Need this engine?
Need a generator package using this engine? Haifeng Machinery can help with sizing, alternator selection, controller, enclosure, voltage, and compliance support.
Get a Quote ↗Or browse Haifeng's diesel generator sets ↗