The 6RA70 SIMOREG DC MASTER series rectifier is a fully digital compact rectifier, with a three-phase power input that can supply power to the armature and excitation for variable speed DC drive. The rated armature current ranges from 15A to 2200A. Compact rectifiers can be used in parallel, providing currents up to 12000A, while excitation circuits can provide a maximum current of 85A (depending on the rated armature current).