PSI 40L vs Waukesha VHP F3524GSI
The PSI 40L and Waukesha VHP F3524GSI are both natural gas generator engines in a similar power class. Both are rated at roughly 832 kVA. Displacement is 39.23 L versus 57.7 L. The table below compares their full specifications side by side.
| Specification | PSI 40L | Waukesha VHP F3524GSI |
|---|---|---|
| Headline rating | 813 kVA | 850 kVA |
| Standby (50 Hz) | 650 kWe | — |
| Prime (50 Hz) | 585 kWe | — |
| Standby (60 Hz) | 800 kWe | — |
| Prime (60 Hz) | 725 kWe | 680 kWe |
| Displacement | 39.23 L | 57.7 L |
| Configuration | V12 | L6 |
| Cylinders | 12 | 6 |
| Rated speed | 1,500 / 1,800 RPM | 1,440 RPM |
| Fuel | Natural Gas | Natural Gas |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Emissions | U.S. EPA Stationary | Unregulated |
| Dry weight | 3390 kg | — |
| Origin | United States | United States |
Choosing between PSI 40L and Waukesha VHP F3524GSI
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. The Waukesha VHP F3524GSI has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.