Haifeng Machinery

Baudouin 6M21G390/6 vs FPT F3HC0685A*D

The Baudouin 6M21G390/6 and FPT F3HC0685A*D are both diesel generator engines in a similar power class. Both are rated at roughly 485 kVA. Displacement is 12.6 L versus 10.3 L. The table below compares their full specifications side by side.

SpecificationBaudouin 6M21G390/6FPT F3HC0685A*D
Headline rating488 kVA481 kVA
Standby (50 Hz)385 kWe
Prime (50 Hz)350 kWe
Standby (60 Hz)390 kWe385 kWe
Prime (60 Hz)350 kWe350 kWe
Displacement12.6 L10.3 L
ConfigurationL6L6
Cylinders66
Rated speed1,800 RPM1,500 / 1,800 RPM
FuelDieselDiesel
CoolingLiquid-CooledLiquid-Cooled
EmissionsUnregulatedUnregulated
Dry weight
OriginFranceChina

Choosing between Baudouin 6M21G390/6 and FPT F3HC0685A*D

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 6M21G390/6 has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.