Drive selection memo
The Siemens 6SL3211-0KB12-5UA0 is a SINAMICS G110 CPM110 AC drive sized for a 0.25 kW motor on single-phase 200-240 VAC input. It delivers 0.25 kW in both constant-torque (CT) and variable-torque (VT) profiles, with a CT overload capability of 150 % for 60 seconds — enough for short-duration starting or load spikes on pumps, fans, or small conveyors. The drive accepts an analog input for speed reference and operates without an integrated EMC filter, so plan for an external filter if the installation must meet conducted emission limits.
Integration notes
IP20 protection and no heatsink mean this drive is intended for enclosure mounting where ambient stays between -10 and +50 °C. Dimensions are 150 x 90 x 101 mm (HxWxD) — fits a standard 200 mm deep cabinet. The single-phase input simplifies wiring in smaller panels where three-phase is unavailable. Without a built-in BOP (Basic Operator Panel), speed setpoint and parameterization rely on the analog input or a serial interface; plan for an external control method if local adjustment is needed.