Servomotor for the SINAMICS S200 line
The Siemens 1FL2103-4AF11-0SC0 is a SIMOTICS S-1FL2 low-inertia servomotor built to pair with the SINAMICS S200 drive platform — a 400 V three-phase unit rated 0.4 kW continuous output at 3000 rpm, with both standstill and rated torque at 1.27 Nm. That torque parity between M0 and Mn tells you the motor holds rated torque continuously up to its base speed with no field-weakening region in the working envelope, which simplifies sizing for positioning axes. Mechanical package is a 30 mm shaft height with a plain shaft (tolerance N) and an integrated holding brake — the standard configuration for a vertical-axis positioning motor where back-driving at standstill must be prevented. The hybrid connector AS21bit carries both power and the 21-bit absolute encoder feedback in a single mated assembly, cutting cabinet-side wiring to one cable on the motor end.
Enclosure, sealing, and what IP65 means on this body
Protection class IP65 with oil seal on the shaft through-end — the body is sealed against dust and low-pressure water jets, and the oil seal keeps cutting fluid or gear-grease from migrating past the shaft seal into the feedback housing. For a machine tool or conveyor gearbox environment this is the right rating for splash and coolant exposure but not for full washdown duty; if the line gets hosed down routinely, that changes the candidate list. RoHS compliance since 01-01-18 with REACH Art. 33 duty-to-oblige information carried through — the standard compliance posture for an actively produced Siemens drive component, no legacy material declarations.