The Generator EngineEncyclopedia

Generac SG200 vs VMAN CET12

The Generac SG200 and VMAN CET12 are both natural gas generator engines in a similar power class. Both are rated at roughly 250 kVA. Displacement is 14.2 L versus 12.8 L. The table below compares their full specifications side by side.

SpecificationGenerac SG200VMAN CET12
Headline rating250 kVA250 kVA
Standby (50 Hz)
Prime (50 Hz)200 kWe
Standby (60 Hz)200 kWe
Prime (60 Hz)180 kWe
Displacement14.2 L12.8 L
ConfigurationL6L6
Cylinders66
Rated speed1,800 RPM1,500 RPM
FuelNatural GasNatural Gas
CoolingLiquid-CooledLiquid-Cooled
EmissionsU.S. EPA StationaryUnregulated
Dry weight
OriginUnited StatesChina

Choosing between Generac SG200 and VMAN CET12

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.