Haifeng Machinery

SDEC SC7H230D2 vs Yunnei D6R252-35CR

The SDEC SC7H230D2 and Yunnei D6R252-35CR are both diesel generator engines in a similar power class. Both are rated at roughly 190 kVA. Displacement is 7 L versus 6.7 L. The table below compares their full specifications side by side.

SpecificationSDEC SC7H230D2Yunnei D6R252-35CR
Headline rating191 kVA189 kVA
Standby (50 Hz)153 kWe
Prime (50 Hz)139 kWe151 kWe
Standby (60 Hz)
Prime (60 Hz)
Displacement7 L6.7 L
ConfigurationL6L6
Cylinders66
Rated speed1,500 RPM1,500 RPM
FuelDieselDiesel
CoolingLiquid-CooledLiquid-Cooled
EmissionsChina National Stage II / UnregulatedChina National Stage III / Unregulated
Dry weight
OriginChinaChina

Choosing between SDEC SC7H230D2 and Yunnei D6R252-35CR

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 SDEC SC7H230D2 has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.