100 W / 0.32 Nm on a 20 mm frame
The Siemens 1FL2102-4AF00-1SC0 is a SIMOTICS S-1FL2 low-inertia servo motor rated 100 W (Pn) at 3000 rpm (Nn) from a 400 V 3AC supply, with both stall torque M0 and continuous torque Mn at 0.32 Nm on a 20 mm shaft height — meaning the motor is sized for light-duty point-to-point motion where positioning accuracy matters more than raw torque. The motor is part of the 1FL2 family and is matched specifically to the SINAMICS S200 drive line, so it is not a generic brushless servo — the winding, encoder protocol, and hybrid connector are designed for that single drive platform.
Encoder, shaft, and sealing choices
Feedback is a 21-bit single-turn absolute encoder brought out through a hybrid connector, which on the 1FL2 family carries both the power cores and the encoder signal in one cable — convenient for short cabinet-to-axis runs where separate power and signal cables would clutter the cable tray. The shaft includes a keyway with tolerance N and the unit ships without a holding brake; the protection class is IP54 without an oil seal, so the motor is intended for clean industrial cabinets and light-duty ambient conditions rather than washdown or food-grade conveyor zones.
Order class, packaging, and compliance paperwork
Siemens classifies this order code under product class C — built per order, not returnable for credit — so lead time is set at the factory order window rather than pulled from shelf stock; the unit ships one piece per package in a 315 × 182 × 172 mm OEM carton. Internal classification carries Group Code R220 and Product Group X0DJ; the motor has been RoHS-compliant since 01-01-18 and is covered by REACH Art. 33 candidate-list disclosure, and export control is AL:N / ECCN:N — no special licence routing for standard commercial shipments.