Servomotor definition and SINAMICS pairing
The Siemens 1FL2310-6AC11-0SB0 is a SIMOTICS S-1FL2 servomotor in the 1FL2 family sized for the SINAMICS S200 drive line — a high-inertia, AC brushless servo built around a 90 mm shaft height and a 400 V 3AC supply rail. The match to the S200 converter is on the datasheet, not a coincidence: it is the motor Siemens publishes the S-1FL2 against, so encoder resolution, brake control and connector geometry line up without a cross-vendor adapter. Power and torque sit at Pn 7 kW, Nn 2000 rpm, M0 35.2 Nm and Mn 33.4 Nm, with the M0/Mn gap of roughly 1.05× telling you the motor is a low-speed / constant-torque duty rather than a field-weakening part. The 7 kW against a 90 mm frame is a heavy end of the S-1FL2 range — it is normally chosen where the load needs both continuous torque and the dynamic response of a brushless servo, not where a VFD-driven induction motor would do.
Mechanical build: shaft, brake, connector, sealing
Mechanically the motor ships with a plain shaft (tolerance N), a holding brake, an angular connector, and IP65 protection with an oil seal. The oil seal at the shaft exit is what separates IP65 from a higher rating on this frame — it preserves the sealing line at the through-shaft path but does carry a finite wear life under continuous rotation, which matters for high-cycle positioning axes. Encoder feedback is listed as a 21-bit interface on the angular connector, which sets the position-loop resolution at roughly 2 million counts per turn and matches the SINAMICS S200 default feedback channel without an external module. The angular connector orientation fixes cable routing direction at build time — confirm the exit angle against the cabinet layout before committing, since field-swapping the connector orientation usually means rotating the motor in the mount.
Production status and orderability
Product class is C — built to order, not returnable for credit — which is the standard framing for configured servomotors that are wound and assembled against the customer’s option list rather than pulled from a generic shelf. RoHS compliance applies since 01-01-18 and REACH Art. 33 duty-to-inform is active against the current candidate list.
Logistics and catalog codes
Shipping package is one motor per carton, with outer dimensions 595.00 x 369.00 x 407.00 mm and a packaging quantity of 1. Cataloguing identifiers are Group Code R220 and Product Group X0DM — these are the internal Siemens dispo keys the trade desk uses when raising a BOM line or a price-inquiry against this motor and have no functional meaning on the motor itself. Because this is a class-C configured servo, availability is a function of build slot rather than shelf stock — quoting against the BOM with the configured option list is the realistic path, not asking for a stock count. Lead time and price are confirmed per RFQ against the specific order code, with no off-the-shelf acceleration offered by the configuration itself.