Where this servo motor sits in a machine
The 1FK2104-4AK00-1SA0 is a SIMOTICS S-1FK2 HD servo motor from the Siemens 1FK2 family, sized for pairing with a SINAMICS S210 drive on packaging, indexing, and small-format converting lines where a high-dynamic, low-inertia rotor is the priority. Its locked-rotor torque M0 of 1.27 Nm and the 0.6 kW rated power at 6000 rpm from a 380–480 V supply (or 0.4 kW at 3000 rpm from a 200–240 V rail) put it in the compact end of the 1FK2 frame range — sized for small-load axes, not main-drive spindles.
Mechanical and feedback package
Feedback is an absolute encoder single-turn 22-bit (AS22DQC), communicated over the OCC interface and exited through a rotatable M17 plug — the 22-bit resolution delivers roughly 4.8 million counts per turn, which is what gives the S210 drive its positioning precision at low speed.
Lifecycle and compliance posture
Compliance footprint covers RoHS conformity since 01-07-06 and REACH Article 33 candidate-list disclosure obligation, with export classification AL:N / ECCN:N_CNDU — no special export licence is triggered for routine cross-border shipment.
Sourcing posture
Because the part is build-to-order and shippable singly (Quantity Unit 1 Piece, one motor per package at 452 x 250 x 267 mm), panel builders and MRO spares typically quote against the BOM line and confirm availability at RFQ — no stocking claim is made here, and the independent channel handles both single-unit spares and small-batch replenishment.