What the 1FL2 0.4 kW frame actually delivers
The 1FL2103-4AF10-0SC0 is a SIMOTICS S-1FL2 low-inertia servomotor in the 30 mm shaft-height frame, designed as the matched rotating element for a SINAMICS S200 drive section. On a 400 V 3AC supply it delivers Pn = 0.4 kW at Nn = 3000 rpm, with stall and rated torque both at M0 = Mn = 1.27 Nm — meaning the motor holds its rated torque all the way down to standstill without a torque fold-off zone, which is what makes the 1FL2 useful on short indexing moves where a stepper would lose steps and a higher-inertia servo would overshoot. Feedback is the AS21bit single-turn absolute encoder; the shaft is plain with tolerance N, and a holding brake is integrated for vertical-axis and quick-stop duty. Protection class is IP54 without an oil seal, which suits clean dry cabinets and light-duty machine interiors — not wet or food-grade washdown.
Why the SINAMICS S200 pairing matters on the BOM
Wiring exits via the hybrid connector specified for this code; encoder resolution (AS21bit) is read directly by the S200, so position-loop tuning stays a one-shot auto-commissioning step rather than a manual parameter entry per axis.
Sourcing reality for a built-to-order servomotor
Lifecycle stage reads current and the brand-level status is Active, so this code is still in regular production flow at Siemens rather than a phase-out. Product class is C — built to order, not reusable as a stock return — so each unit on a BOM line is built against the order; lead time and any volume break are confirmed at RFQ rather than pulled from shelf inventory. Export control markings are AL: N / ECCN: N, which removes most re-export paperwork from the buyer's path; packaging footprint is 315 x 182 x 172 mm per single-piece pack.