Niigata
Niigata 12V28AGS
28AGS
Niigata 12V28AGS — 288 L V12 (280 × 390 mm) spark-ignited lean-burn natural-gas engine (Niigata Power Systems / IHI Group), for high-efficiency cogeneration. 4000 kWe at ~750 rpm.
- Manufacturer files
- 2 datasheets
- Last updated
- 2026-06-10
- Package route
- gas generator sets
- Prime Power · 50 Hz
- 5,000 kVA
- Electrical Output
- 4,000 kWe
- Cylinders
- V12
- Displacement
- 288 L
- Rated Speed
- 750 RPM
Power Ratings
kWm = mechanical shaft power · kWe = electrical output · kVA = kWe ÷ 0.8 pf
50 Hz750 RPM
| kWm | kWe | kVA | |
|---|---|---|---|
| Prime Power | — | 4000 | 5000 |
Niigata 12V28AGS generator set context
The Niigata 12V28AGS is listed here as a natural gas generator-drive engine for 50 Hz generator sets, with a headline 5,000 kVA / 4,000 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.
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Technical Specifications
| Brand | Niigata |
| Model | 12V28AGS |
| Series | 28AGS |
| Configuration | V12 |
| Cylinders | 12 |
| Displacement | 288 L |
| Fuel Type | Natural Gas |
| Ignition Type | Spark Ignition |
| Cooling Method | Liquid-Cooled |
| Emissions Standard | Unregulated |
| Country of Origin | Japan |
Frequently asked questions
What is the power output of the Niigata 12V28AGS?
The Niigata 12V28AGS is rated at 5,000 kVA prime at 50 Hz (750 rpm).
Does the 12V28AGS run at 50 Hz or 60 Hz?
The Niigata 12V28AGS is rated for 50 Hz (750 rpm).
What fuel does the Niigata 12V28AGS use?
The Niigata 12V28AGS is a Natural Gas generator-set engine.
What is the displacement and cylinder configuration of the 12V28AGS?
The Niigata 12V28AGS is a V12 (12-cylinder) engine with a displacement of 288 L.
Is the Niigata 12V28AGS still in production?
Yes — the Niigata 12V28AGS is a current production model.
Is a datasheet available for the 12V28AGS?
Yes — an official Niigata datasheet for the Niigata 12V28AGS can be downloaded from this page.