What it is and where it sits
The 1FL2102-2AF01-1MC0 is a SIMOTICS S-1FL2 low-inertia servomotor from the 1FL2 family, sized and pre-configured for direct pairing with the SINAMICS S200 drive system rather than as a stand-alone motor. It runs on a 400 V 3AC supply, delivers a rated power of 50 W at a rated speed of 3000 rpm, with a standstill torque M0 of 0.16 Nm and a continuous torque Mn of 0.16 Nm, which makes it one of the smallest frame sizes in the family. The shaft height is 20 mm, the feedback is an absolute 21-bit encoder on a hybrid AM21bit connector, and the housing carries an IP65 protection rating with an oil seal — meaning it tolerates close-coupled gearbox oil mist and incidental washdown at the motor face, not full immersion.
Rating so-what for the BOM line
The 50 W / 0.16 Nm / 3000 rpm envelope is the decision-driving set: it positions the part for low-inertia, high-acceleration point-motion axes — small-format conveyors, indexing tables, laboratory automation, label applicators, and similar duties where the load inertia is low and the cycle time is the constraint. Because Mn equals M0 at 0.16 Nm, the motor delivers its full standstill torque continuously without thermal derating at the rated speed, which simplifies sizing when the peak and continuous torque demand are similar. The AM21bit single-turn absolute encoder plus the keyed shaft with shaft key, Tolerance N, sets the mechanical and electrical interface — the BOM slot will need both the mating hybrid connector assembly and a coupling or pulley that mates to a keyed shaft rather than a plain round shaft. Absence of a holding brake is specified in the description; any axis that must hold position with the drive disabled will need a brake-equipped sibling from the same family, not a field add-on.
Sourcing posture and lifecycle read
Compliance: the motor has been RoHS-compliant since 01-01-18 and is subject to REACH Article 33 duty-to-inform on the candidate list. Export control markings are AL:N / ECCN:N, which generally means no special licence is required for export under the listed classifications, though the buyer of record still runs the end-use check. Packaging is one piece per shipper at 315 x 182 x 172 mm — orderable as a single unit, with no inner-pack minimum beyond the order code itself.
Category-strategy notes
Because the drive-side match is locked to SINAMICS S200, this part should not be specified on a line running SINAMICS V90, S120, or third-party servos — the encoder protocol, hybrid connector pin map, and parameter set are S200-native, and a swap onto an unrelated drive will not close the commissioning loop. Pin-compatible alternatives inside the family come from other 1FL2102-2AF01-1MC0 suffix variants (brake vs no-brake, shaft key vs plain shaft, connector orientation); for a true cross-reference, confirm the suffix against the same 20 mm shaft-height family in the Siemens configurator before approving the substitution.