Frame, torque, and what it actually moves
The Siemens 1FL2103-4AG10-0MC0 is a SIMOTICS S-1FL2 low-voltage servo from the 1FL2 family built for direct pairing with the SINAMICS S200 drive line, delivering 0.4 kW at a rated speed of 3000 rpm with continuous and stall torque both held at 1.27 Nm — a flat torque profile that suits small CNC feed axes, indexing tables, and auxiliary rotary loads where the continuous figure, not the peak, governs the sizing decision. At a 30 mm shaft height with an IP54 housing (no oil seal) and an integrated holding brake, it drops into the compact axis class where panel space and brake-on power-loss retention are the deciding constraints.
Encoder, shaft, and electrical connection
Feedback is an AM21bit absolute encoder, so position is resolved to roughly 0.00005° per count — well below the following-error budget typical for a precision feed axis and tight enough for closed-loop contouring on small parts. The motor carries a plain shaft to tolerance N and exits via a hybrid connector (power + signal in one shell), keeping the cabinet-side wiring to a single cable run back to the SINAMICS S200 — a useful simplification in retrofits where the existing cable chain was sized for a different motor family. Supply is 200 V three-phase, the low-voltage rail that the SINAMICS S200 family is designed around; matching drive electronics on the same platform is the intended configuration, not a field-mod workaround.
Lifecycle, ordering class, and what that means at RFQ
Commercial class is C — built to order against the configuration, non-returnable and non-reusable in the Siemens return-for-credit sense — which translates practically into a confirmed-at-quote lead-time and a per-piece quantity unit rather than bulk shelf stock. Compliance paperwork is on file for RoHS since 01-01-18 and REACH Article 33 candidate-list disclosure via the Siemens Reach Information page, with no export-control flag (AL:N / ECCN:N) attached. Group code R220 and product group X0DJ are the administrative keys Siemens uses to slot this motor inside its ordering and pricing systems — useful to quote when the RFQ is being reconciled against the Siemens configurator.