S-1FL2 low-inertia servo at 1 kW
The 1FL2104-4AF10-1MC0 is a SIMOTICS S-1FL2 low-inertia servomotor from the 1FL2 family designed to pair directly with the SINAMICS S200 drive, taking the 400 V 3AC supply and delivering a rated power of 1 kW at a nominal speed of 3000 rpm with a continuous and stall torque of 3.2 Nm on a 40 mm shaft height frame. What that pairing means in practice: shaft height, encoder interface, and brake option are all co-specified with the S200, so the motor and drive slot together as a matched axis rather than two independent catalog items.
Mechanical and environmental envelope
The motor ships with a hybrid connector (AM21bit encoder interface), a keyed shaft with N tolerance, and an integrated holding brake — the three options that most often distinguish one variant of the 1FL2104 order code from another. Protection class IP54 without an oil seal sets the deployment envelope: the housing keeps out dust and splashing water from typical machine interiors, but it is not a washdown-rated or outdoor-rated motor — for food-and-bev lines or wet cabinet interiors a higher IP variant belongs on the BOM. Packaging dimensions of 382 x 222 x 240 mm reflect the factory carton, not the motor footprint — the actual frame is the 40 mm shaft height listed in the spec.
BOM posture and ordering taxonomy
The part carries product class C: configured-to-order, non-returnable, non-reusable stock, which is the standard Siemens posture for a built-to-order servo with the specific shaft, brake, and connector option set. Once shipped it cannot be returned for credit against a different variant. The order sits in group code R220, product group X0DK within the Siemens ordering system — useful for a sourcing team reconciling a PO against the factory invoice, and the same identifiers the Siemens configurator uses to gate which drives and cables the motor is released against.
Compliance footprint
The motor has been RoHS-compliant since 01-01-18 and carries the standard REACH Article 33 duty-to-inform disclosure, so it clears EU substance-restriction gates without a deviation note on the BOM. Export control classifications are AL: N and ECCN: N, meaning no special export licence is required for routine cross-border shipments — relevant for a category manager planning multi-region build kits.