The 1FK2104-4AK11-1MA0 is a SIMOTICS S-1FK2 HD servo motor with holding brake, designed for the SINAMICS S210 drive family — the M0=1.27 Nm stall torque and 0.6 kW continuous at 6000 rpm (380-480 V supply) make it the compact mid-range point in the 1FK2 line, while the holding brake locks the axis when the drive is de-energised. The IP65-rated housing and shaft D19x40 mm with feather key suit it to factory-floor cabinet-internal or sheltered machine mounting rather than direct washdown; the rotatable M17 plug and OCC interface simplify the cable routing at panel build.
Two speed points, one brake — the rating that drives sizing
At the 380-480 V supply range the motor delivers PN=0.6 kW at nN=6000 rpm; dropping to a 200-240 V supply derates continuous power to PN=0.4 kW at nN=3000 rpm — so the BOM line item must lock the drive input voltage before the motor order code, not after, since swapping a 480 V system to 240 V silently halves usable shaft power. Position feedback comes from the AM22DQC absolute encoder at 22-bit single-turn plus 12-bit multiturn resolution — sufficient for high-end packaging and indexing axes where the controller needs to know absolute shaft position after a power cycle without re-homing. The integrated holding brake is the axis-safety element when the drive stage is disabled — it holds position under static load, not under dynamic braking, and the brake release coil draws from the drive-side brake output, so the SINAMICS S210 wiring diagram governs the brake control circuit.
Active production, made-to-order classification
The lifecycle stage is current and the product is listed as Active — Siemens is still manufacturing this code, and the product class is C, meaning each unit is produced to order against a confirmed purchase order and cannot be returned against credit once shipped. Quantity unit is 1 Piece with packaging quantity 1, and the packaging carton measures 452.00 x 250.00 x 267.00 mm — this is a single-motor shippable carton, not a multi-pack, which matters for MRO spares planning where shelf footprint and unit-level traceability both count.
Compliance posture for OEM qualification files
RoHS compliance has been in force since 01-07-06, and the part carries the REACH Article 33 duty-to-inform obligation per the current candidate list — both pieces feed straight into the OEM's declaration-of-conformity pack and the EU shipment paperwork without further testing. Export classification is AL:N with ECCN N_CNDU, meaning no export-control licence is triggered for typical commercial destinations — the OEM shipping finished machines out of EU/US does not need a re-classification pass on this motor alone.