The Siemens 6SL3211-0KB13-7UB0 is a SINAMICS G110 CPM110 AC drive rated for 0.37 kW constant torque and 0.37 kW variable torque, accepting single-phase 200-240 VAC input at 47-63 Hz. It communicates over RS485 via the USS protocol, making it a direct fit for simple pump, fan, or conveyor applications where a basic serial link to a PLC is sufficient. The IP20 enclosure means it lives inside a panel, not on the machine — plan for a clean, dry cabinet with no washdown exposure.
Ratings and what they mean
The 0.37 kW rating at constant torque (CT) matches a standard 0.5 hp induction motor on a conveyor or positive-displacement pump, where full torque is needed down to low speed. The same 0.37 kW variable-torque (VT) rating suits centrifugal fans and pumps, where torque drops with speed — the drive handles the same motor but with a lighter thermal load. CT overload is 150% for 60 seconds, which covers starting inertia and short-term overloads without tripping. Input voltage tolerance is +10/-10% on 200-240 VAC single-phase, so it stays live during brownouts down to 180 VAC. Ambient temperature range is -10 to +50 °C without the optional BOP (Basic Operator Panel); derate above 40 °C per the thermal curve if you add the BOP.
Mounting and integration
Dimensions are 150 x 90 x 101 mm (HxWxD), no heatsink overhang — it fits a standard 200 mm deep enclosure. The IP20 housing requires a clean, dry panel; no gland plate sealing needed. RS485 wiring uses the USS protocol at the default baud rate — verify the master's USS configuration before commissioning.