What the catalogue line tells you before you open the box
The 1FL2203-4AF01-0SC0 is a SIMOTICS S-1FL2 low-inertia servo in the 1FL2 family sized for the SINAMICS S200 drive line, with a 400 V 3AC supply, 0.4 kW rated power, 3000 rpm rated speed, and 1.27 Nm continuous / standstill torque on a 30 mm shaft height. Siemens carries the part under group code R220 and product group X0DJ as a single-piece unit, packaged 315.00 x 182.00 x 172.00 mm.
Mechanical and connector fit on the machine
The shaft is plain (no key) with tolerance N and the motor ships without a holding brake, which means external braking has to come from the SINAMICS S200 drive or the machine's mechanical system — verify the axis logic before specifying a drop-in for a gravity-loaded application. Connection is via the AS21 hybrid connector and the housing is sealed to IP65 with an oil seal, so the motor is acceptable for cabinet-external mounting where coolant splash and oil mist reach the body, but it is not a fully sealed washdown unit — the cable gland and connector mate carry the wet-end barrier.
Lifecycle, commercial class, and compliance posture
The part sits in active, current production per the Siemens record and is classed as built-to-order product class C — manufactured per order, not returnable against credit, which is the norm for configured servomotors and is what makes min/max stocking on this code a judgment call rather than a shelf-staple move. Compliance footprint: RoHS-conformant since 01-01-18, REACH Art. 33 duty-to-inform applies, and the part is not export-controlled (AL:N / ECCN:N) — paperwork is the standard CE/REACH bundle rather than an export-licence chain.
What this changes for the RFQ
Because the unit is built-to-order with a one-piece quantity unit, the realistic supply channel is quoted-to-order against the BOM line — lead time and any volume break are confirmed at RFQ rather than pulled from a generic shelf.