Haifeng Machinery

Baudouin 6M21G6D3/6 vs SDEC 12GTAA27-G34

The Baudouin 6M21G6D3/6 and SDEC 12GTAA27-G34 are both diesel generator engines in a similar power class. Both are rated at roughly 572 kVA. Displacement is 12.54 L versus 27 L. The table below compares their full specifications side by side.

SpecificationBaudouin 6M21G6D3/6SDEC 12GTAA27-G34
Headline rating575 kVA569 kVA
Standby (50 Hz)455 kWe
Prime (50 Hz)413 kWe
Standby (60 Hz)460 kWe
Prime (60 Hz)400 kWe
Displacement12.54 L27 L
ConfigurationL6V12
Cylinders612
Rated speed1,800 RPM1,500 RPM
FuelDieselDiesel
CoolingLiquid-CooledLiquid-Cooled
EmissionsEU Stage IIIAChina National Stage III / Unregulated
Dry weight
OriginChinaChina

Choosing between Baudouin 6M21G6D3/6 and SDEC 12GTAA27-G34

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 Baudouin 6M21G6D3/6 has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.