Haifeng Machinery

SDEC 6KTAA25-G320.1 vs VMAN D30B3

The SDEC 6KTAA25-G320.1 and VMAN D30B3 are both diesel generator engines in a similar power class. Both are rated at roughly 1,020 kVA. Displacement is 25 L versus 29.235 L. The table below compares their full specifications side by side.

SpecificationSDEC 6KTAA25-G320.1VMAN D30B3
Headline rating1,015 kVA1,024 kVA
Standby (50 Hz)——
Prime (50 Hz)——
Standby (60 Hz)812 kWe819 kWe
Prime (60 Hz)738 kWe743 kWe
Displacement25 L29.235 L
ConfigurationL6V16
Cylinders616
Rated speed1,800 RPM1,800 RPM
FuelDieselDiesel
CoolingLiquid-CooledLiquid-Cooled
EmissionsChina National Stage III / UnregulatedUnregulated
Dry weight——
OriginChinaChina

Choosing between SDEC 6KTAA25-G320.1 and VMAN D30B3

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 VMAN D30B3 has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.