Form factor and pairing to SINAMICS S200
The Siemens 1FL2304-4AF11-1HB0 is a SIMOTICS S-1FL2 low-voltage servo motor built to pair with the SINAMICS S200 drive family (cites:,). It is sized at shaft height 45 mm — a compact frame that fits inside machine bases and small-footprint automation cells where a 0.75 kW continuous rating is the working point. Holding brake is included, with shaft key and tolerance N, and the resolver side is fitted with an angular connector carrying a 17-bit absolute encoder (cites:). The brake makes the assembly directly drop-in for vertical-axis applications where the load must hold position with the drive powered down. IP65 with oil seal closes the wet-side path, so the motor body withstands coolant spray and oil mist typical of a machining cell or a wet conveyor station (cites:). The package ships as a single piece in a 432.00 x 222.00 x 240.00 mm pack (cites:,).
Ratings and what 0.75 kW at 3000 rpm covers
The headline figures are Pn = 0.75 kW continuous, Nn = 3000 rpm rated speed, with stall torque M0 = 3.02 Nm and rated torque Mn = 2.39 Nm (cites:). The M0/Mn ratio of about 1.26 means the motor holds roughly a quarter of its rated torque as overload headroom — useful for short acceleration bursts on conveyor indexing or small-pack handling arms. Supply is 400 V three-phase AC, which matches the SINAMICS S200 400V-class line-up without an extra transformer (cites:). The 17-bit single-turn resolution gives the position loop the feedback granularity needed for indexing moves, not just basic velocity control.
Compliance and lifecycle posture
Lifecycle status is recorded as active under the manufacturer code, and the product class note flags this build as manufactured-to-order — non-returnable and not re-usable against credit (cites:,). For a BOM line that is the working signal: it is current production, but each unit is built to the order, not pulled from a finished-goods buffer. Compliance carries RoHS conformity since 01-01-18, REACH Art. 33 duty-to-inform under the current candidate list, and no ECCN/AL export-control flag attached (cites:,). The RoHS cut-over date matters for legacy machine builders retrofitting older panels — pre-2018 Siemens servos in the same frame may not match this compliance footprint.
Sourcing the build-to-order motor
Order quantities against the BOM are quoted per RFQ; the motor ships configured to the order code and is non-returnable, so commit the encoder type, brake, shaft key and connector variant before releasing the purchase order (cites:,). For a line-down spare, lead time and current price are confirmed at quote against the required quantity, with availability matched to the manufacturing run window rather than a stocked shelf.