Why this 1FL2 servo and not the next frame up
The Siemens 1FL2102-4AF11-1MC0 is a SIMOTICS S-1FL2 servomotor sized at 0.32 Nm continuous torque with a 100 W nameplate rating and a 3000 rpm rated speed, built in the 20 mm shaft-height frame and wired up through a hybrid AM21 connector to the SINAMICS S200 drive family. For an auxiliary-axis application — small indexing tables, diverters, labelers, light-format conveyor — it gives a SINAMICS-native motion loop without stepping up to the next frame's mechanical envelope. The 21-bit multi-turn absolute encoder and the integrated holding brake close the loop and hold the axis without an external brake resistor or third-party cable, which is what keeps cabinet-side wiring to the connector and not a junction box.
What the ratings commit
Pn=100 W with Nn=3000 rpm and M0=Mn=0.32 Nm means continuous and stall torque are equal on this frame — the motor can sit at a stop under hold for short indexing dwells without immediately leaving the continuous thermal envelope, but the 100 W ceiling still rules out anything that asks for steady mechanical work above that line. Supply voltage 400 V 3AC upstream of the SINAMICS S200 line filter is the conversion point — the drive converts 400 V 3AC to the DC bus the 1FL2 sees, which is why this motor is paired, not patched in next to a 230 V axis. IP65 with oil seal and a keyed shaft held to tolerance N is the field-side commitment: light washdown, coolant mist, and direct-drive couplings that mount on the key without rework — not submerged or food-zone cleaning.
Sourcing posture for this build-to-order line
RoHS-aligned since 01-01-18 with REACH Art. 33 candidate-list communication available, export mark AL:N / ECCN:N — the cross-border file line is short and the receipt does not need an extra jurisdiction check outside the EU shape.
Where it drops in on the line
DIN rail does not apply to the motor body itself; this 1FL2 lands at the driven machine with the hybrid AM21 connector facing the routing channel and a keyed shaft facing the coupling — the standard 20 mm shaft height is the rough sizing check against the existing mount and housing geometry.