Drive selection memo
The Siemens 6SL3210-1KE14-3UP0 is a SINAMICS G120C variable-frequency drive rated for 1.5 kW output on a 380-480 VAC 3-phase supply, with a 150% overload capability for 3 seconds. It integrates PROFIBUS DP fieldbus and Safe Torque-Off (STO) as standard, eliminating the need for separate safety relay hardware on the line. The IP20 / UL Open Type enclosure suits cabinet-mount installation; the FSA frame dimensions (196 x 73 x 203 mm) fit a standard DIN-rail footprint.
What the ratings mean for fit
The 1.5 kW rating at 150% overload for 3 seconds means this drive handles short-duration load spikes — typical for a conveyor start or a pump breakaway torque — without tripping. The unfiltered input stage keeps conducted emissions higher than a filtered variant, so check the line-side EMC requirement for your panel. PROFIBUS DP integration means the drive appears as a standard DP slave; no external communication module is needed. Safe Torque-Off (STO) meets SIL 3 / PL e and removes the motor torque without disconnecting the power — a clean way to satisfy safety circuit separation in a hazard zone.