As a generator set the M25 is available in a 50Hz and 60Hz version. The 50Hz version has an output range from 1,760 kWe (6M25C) to 2,850 kWe (9M20C) at 750 revolutions per minute. The output of the 60 Hz version ranges from 1,710 kWe (6M25C) to 2,700 kWe (9M25C) at 720 revolutions per minute.