Headline ratings and what they mean for sizing
The Siemens 1FL2104-2BG11-1MC0 is a SIMOTICS S-1FL2 low-inertia servo in the 1FL2 family, wound for a 200 V 3 AC supply with a rated power of 0.75 kW at a nominal speed of 3000 rpm, and a standstill/rated torque of 2.4 Nm on both M0 and Mn — meaning the motor holds full torque from zero speed through base speed without a torque-derating region in the constant-torque range. Shaft height 40 mm with an AM21-bit hybrid encoder and a keyed shaft (tolerance N) — the 21-bit single-turn/multi-turn feedback resolves to about 8.4 million counts/rev, so the SINAMICS S200 drive can hold position within the encoder's quantization noise without an external load-side encoder on most point-to-point axes.
Matched drive and on-machine duty
This SKU is qualified against the SINAMICS S200 servo drive family — the drive handles the 200 V 3 AC bus and the AM21-bit encoder protocol natively, so commissioning is one electronic nameplate upload rather than a manual motor-parameter entry on first power-up. The motor ships with an integrated holding brake and IP65 protection class with oil seal — the seal package suits machine-tool and gear-lube environments where cutting fluid or splash oil reaches the shaft exit, but the rating does not extend to high-pressure washdown.
Compliance, ordering codes, and class-C build
Ordering metadata: Group Code R220, Product Group X0DK, packaging quantity 1 piece, export-control markings AL:N / ECCN:N — and the product is classed as made-to-order, so each unit is built against the order and cannot be returned for credit. Lifecycle stage is current, with no successor or cross-reference published — the part stays in the active Siemens 1FL2 catalog for the SINAMICS S200 platform.
Sourcing posture for a made-to-order servo
Because the SKU is built-to-order, availability is confirmed against the RFQ rather than off the shelf — production quantities are quoted against the BOM with lead time and price-break ladder confirmed at quote, not inferred from spot stock.