SINAMICS is the Siemens drive family for motor speed control, and G120 / G120C is its general-purpose workhorse across pumps, fans, conveyors and mixers. We supply power modules, control units and complete G120C units, and can source the wider SINAMICS range — V20, G120X, S120 — to order even where it is not listed online.
A modular G120 needs both a Power Module and a Control Unit; a G120C combines them in one part number.
Size the drive on motor current, not just kW, and derate for ambient temperature above 40 °C — a real consideration in hot plant rooms.
Confirm the filter class (unfiltered, A or B) required by the installation.
Check whether an operator panel (IOP/BOP) or a commissioning tool is included — usually it is not.
Frequently asked questions
What replaces a MICROMASTER drive?
MICROMASTER 4 is long discontinued and its usual successor is the SINAMICS G120 (modular) or G120C (compact), sized to the same motor. It is not a mechanical drop-in — mounting, control terminals and parameters all differ.