Siemens Industry SMFFF71 Manual Starter Control Unit is a hand/off/auto motor-start control used to command a connected Siemens contactor in industrial control panels. The three-position selector provides local manual operation (hand), a safe disconnect (off), and automatic control via external signals when integrated into a broader automation system. Designed for reliability in demanding environments, this compact control unit serves as the interface between manual local control and automatic control logic, enabling straightforward start/stop sequences for motors in manufacturing and process applications.
