The 1FL2104-4AF10-0SC0 is a SIMOTICS S-1FL2 low-inertia servomotor from Siemens, sized at Pn=1 kW with a rated speed Nn=3000 rpm and both M0 and Mn at 3.2 Nm, running on a 400 V 3AC supply. It belongs to the 1FL2 product family and is matched to the SINAMICS S200 drive system, with shaft height 40 mm, a plain shaft (tolerance N), a holding brake, IP54 protection class without an oil seal, and a 21-bit hybrid connector. Because it pairs only with the SINAMICS S200, it sits as the rotating half of a closed servo axis — the motor's encoder feedback and brake control both travel through the hybrid cable back to that specific drive, so any retrofit has to keep the S200 on the other end of the shaft.
What those ratings mean at the bench
The 1 kW / 3000 rpm / 3.2 Nm profile is a low-inertia machine — Mn equal to M0 means the motor holds its rated torque continuously down to standstill, which matters for indexing and point-to-point moves where the axis dwells at zero speed under load. IP54 without an oil seal covers typical indoor cabinet and machine interiors; if the application throws coolant or fine dust at the shaft, that rating is the ceiling, not the floor — an upgrade path or sealed machine design belongs in the discussion before commissioning.
Lifecycle, packaging, and how to quote it
Lifecycle stage is recorded as current on the official record, and the catalog price class is C — built to order, which means it is not pulled from shelf stock and the order cannot be reused or returned against credit once produced. For a built-to-order Siemens servo motor, the normal sourcing posture is to quote against the BOM line at the volume you need, with availability and current pricing confirmed against an RFQ rather than read off a price sheet.