Drive selection memo
The Siemens 6SL3211-0KB12-5UA1 is a SINAMICS G110-CPM110 AC Drive rated for 0.25 kW constant torque and 0.25 kW variable torque on a 200-240 V 1 AC supply, unfiltered. The CT overload capability is 150% for 60 seconds, which covers the typical inrush for a small pump or conveyor motor without nuisance tripping. The drive is marked as a spare part, so expect it to match an existing installed base rather than a current catalog revision. The enclosure is IP20 with a flat heat sink, designed exclusively for cooling plate installation — not free-standing panel mount. Ambient temperature range is -10 to +50 °C. There is no BOP (Basic Operator Panel) and no RS-485 interface on this variant, so commissioning and Modbus RTU communication require an external operator panel or a higher-level controller.