The Siemens SINAMICS G120C 6SL3210-1KE23-8AC0 is a compact variable-frequency drive rated for 18.5 kW output power on a 380-480 VAC three-phase supply, with 150% overload capability for 3 seconds. That overload headroom matters for starting high-inertia loads like centrifuges or conveyors under full belt tension — the drive won't trip on the inrush if the mechanical breakaway torque spikes briefly.
Fieldbus and safety
Integrated CANopen fieldbus eliminates the need for a separate communication module in most CAN-based networks. The drive also includes Safe-Torque-Off (STO) as a standard feature — this is a safety function that removes rotational torque without disconnecting the motor power cable, simplifying safety circuit design to PL d / SIL 2 per IEC 61800-5-2. I/O complement: 6 digital inputs, 2 digital outputs, 1 analog input, 1 analog output. That's enough for basic speed setpoint, start/stop, and fault feedback without an expansion module. For applications needing more I/O or a second fieldbus protocol (PROFINET, EtherNet/IP), the G120C family accepts optional communication boards.