Where this motor drops in the cabinet
The 1FL2105-2AF11-1SB0 is a Siemens SIMOTICS S-1FL2 low-inertia servomotor sized for 400 V 3AC operation, delivering 1.5 kW at a rated speed of 3000 rpm with a standstill torque of 5 Nm and a continuous torque of 4.6 Nm — the speed/torque envelope typical of mid-range point-to-point axis duty in packaging, small gantry, and feed-to-position stations. It sits inside the 1FL2 servomotor family paired with the SINAMICS S200 drive platform, which means the motor/drive pairing, encoder feedback, and parameter set are tuned at the family level rather than mixed across series. The shaft height is 52 mm with an angular connector and a keyed shaft (tolerance N), and a holding brake is fitted — so the motor holds position on power loss and the connector exit accommodates the typical cabinet-side cable bend.
What the ratings actually mean at the load
Continuous torque of 4.6 Nm at 3000 rpm translates to roughly 1.44 kW of mechanical shaft power at the rated point — within the rated 1.5 kW envelope — and the 5 Nm standstill figure gives the headroom for acceleration peaks and brief overloads before the drive hits the current limit. Protection class IP65 with an oil seal means the motor body resists dust ingress and low-pressure water jets, which suits plant-floor washdown adjacent to the machine but is not a continuous-submersion rating — the seal also keeps cutting-fluid mist from reaching the shaft seal area on a lathe or mill axis. Feedback is via the AS21 absolute encoder, single-turn 21-bit resolution, which closes the position loop tightly enough for indexed indexing tables and short-stroke feeds without an external measuring system.
Built-to-order class and what that means for procurement
The product is classed as a built-to-order item — manufactured per order, not returnable for credit — so a clean RFQ must carry the full order code plus the quantity before the supplier commits to a ship date; lead time and price confirm at quote. Lifecycle status is recorded as active, with no official successor on file; the part is specified into new SINAMICS S200 cabinets and supported for ongoing production.
Handling and packaging on receipt
The motor ships as one piece in packaging measuring 432 × 222 × 240 mm, which dictates the bench space and the unboxing path on the shop floor — confirm the carton dimensions against the receiving dock if multiple units are crated in. Group code R220 and product group X0DK are the internal Siemens classification keys; cross-check them on the delivery note against the purchase order so the correct production batch is traceable on the nameplate.