Servo for a SINAMICS S200 axis
The Siemens 1FL2102-4AF01-1SC0 is a SIMOTICS S-1FL2 low-inertia servomotor rated for 400 V 3AC supply, Pn 100 W at Nn 3000 rpm, with M0 and Mn both at 0.32 Nm and a 20 mm shaft height — sized for small-format positioning axes on a SINAMICS S200 drive. The motor ships with a hybrid connector (AS21bit encoder feedback), a keyed shaft to tolerance N, no holding brake, and IP65 protection with an oil seal at the shaft entry — the configuration for a clean, dry-machine axis where the brake is handled upstream or not required.
What the 100 W / 0.32 Nm envelope buys
Pn 100 W and M0 0.32 Nm put this frame at the bottom of the 1FL2 family — the right pick for light-load, high-acceleration moves (small transfer arms, indexing tables, label applicators, lab automation stages) where the S200 drives the bus and the motor's job is short-stroke precision rather than continuous torque. Equally important for the fit decision: Nn 3000 rpm means the rated operating point sits well below the mechanical limit, leaving headroom for field-weakening operation or higher-speed profiles on the S200 — and because M0 equals Mn, peak and continuous torque are the same number, so thermal margin is the governing constraint at standstill.
Shaft, sealing, and panel-side integration
The shaft key plus tolerance N locates the load to the motor face without an additional coupling alignment step, and the IP65 oil-seal rating means the shaft entry tolerates incidental oil mist on a machine tool or gearbox — but the seal is wet-side service, so a washdown or food-grade line should plan a higher-rated variant. The hybrid connector AS21bit carries power and the 21-bit encoder feedback on one plug, so cabinet routing is a single cable run back to the S200 — keep the bend radius and the EMC segregation from VFD power cables per the drive manual to protect the encoder signal.
Lifecycle and compliance posture
Product class C: made-to-order — non-returnable and built per the configured option string, so the BOM line should be locked before the RFQ is released.