50 W on a 20 mm shaft — what the rating actually fixes
The 1FL2102-2AF00-1SC0 is a SIMOTICS S-1FL2 low-inertia servo in the 1FL2 family, built for the SINAMICS S200 drive line. Supply voltage is 400 V 3AC, rated power 50 W, rated speed 3000 rpm, with stall and rated torque both held at 0.16 Nm — a flat-torque profile that suits constant-load duties like small feeders, indexing tables, and label applicators rather than high-inertia starts. Shaft height is 20 mm and the shaft is supplied with a key and N tolerance. Encoder feedback is a 21-bit absolute single-turn (AS) read through a hybrid connector — that resolution is the floor for the SINAMICS S200 current-loop bandwidth; anything coarser and the drive starts tuning against quantization noise at low speed.
Brake, sealing, and the panel-side fit
No holding brake is fitted. The motor is rated IP54 with no oil seal, which keeps it out of washdown cabinets and direct food-zone mounting but is fine for sealed enclosures, light dust, and indoor machine interiors — match the cable gland to the panel's IP target, not the motor's. The hybrid connector carries both power and the encoder signals in one shell, which shortens the cabinet-side wiring loop and keeps the feedback cable away from a separate power run. For an EtherCAT or PROFINET cell, route the hybrid lead to the SINAMICS S200 first; the bus cable then runs from the drive, not the motor.
Compliance trail for the quality file
RoHS compliance has been declared since 01-01-18 and REACH Article 33 candidate-list information is supplied with the product. The product is built to order (Siemens product class C — manufactured per order, no return credit) and lifecycle status is current. Group code R220 / product group X0DJ are the internal ordering keys to put on the purchase order line so the configuration matches what's quoted.
Sourcing posture for the BOM line
Built-to-order class C means lead time is configuration-bound, not shelf-bound — quote it against the RFQ with the exact 1FL2102-2AF00-1SC0 order code and the quantity, and confirm pricing and delivery at quote time. No stock-holding claim is implied; the unit is sourced through independent distribution on a per-RFQ basis.