The MACS is a generator-set controller. It is used on generator sets from MaK, including the 12 M 46 DF, 16 M 46 DF, 6 M 34 DF and 6 M 46 DF.
Generator sets using this controller
9MaK 12 M 46 DFMaK 16 M 46 DFMaK 6 M 34 DFMaK 6 M 46 DFMaK 7 M 46 DFMaK 8 M 34 DFMaK 8 M 46 DFMaK 9 M 34 DFMaK 9 M 46 DF