Generac SG450 vs MTU 12V1600L80S
The Generac SG450 and MTU 12V1600L80S are both natural gas generator engines in a similar power class. Both are rated at roughly 563 kVA. Displacement is 21.9 L versus 21 L. The table below compares their full specifications side by side.
| Specification | Generac SG450 | MTU 12V1600L80S |
|---|---|---|
| Headline rating | 563 kVA | 563 kVA |
| Standby (50 Hz) | — | — |
| Prime (50 Hz) | — | — |
| Standby (60 Hz) | 450 kWe | 450 kWe |
| Prime (60 Hz) | 409 kWe | — |
| Displacement | 21.9 L | 21 L |
| Configuration | V12 | V12 |
| Cylinders | 12 | 12 |
| Rated speed | 1,800 RPM | 1,800 RPM |
| Fuel | Natural Gas | Natural Gas |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Emissions | Unregulated | U.S. EPA Stationary |
| Dry weight | — | — |
| Origin | United States | Germany |
Choosing between Generac SG450 and MTU 12V1600L80S
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.