Torque envelope and the two PN ratings
The Siemens 1FK2204-5AK01-1SA0 is a SIMOTICS S-1FK2 CT servo motor in the 1FK2 family aimed at the SINAMICS S210 drive line, with M0 = 2.4 Nm at standstill (cites:). It carries two PN ratings depending on which converter feeds it: 0.57 kW at nN = 6000 rpm on a 380-480 V bus, and 0.75 kW at nN = 3000 rpm on a 200-240 V bus (cites:). On the SINAMICS S210 the 6000 rpm figure is the binding one for sizing — pick the drive firmware variant that matches the line voltage before locking the motor. The shaft is D19 × 40 mm with feather key, the encoder is the absolute single-turn 22-bit AS22DQC, and the housing is sealed to IP65 (cites:). That combination puts the part squarely on machine-tool axes, packaging heads, and small-format pick-and-place where the absolute encoder removes the homing routine on power-up.
Commissioning-side physical and signal interface
Connection is via the OCC interface on a rotatable M17 plug, so the cable gland can be clocked to whichever side of the axis the cabinet routing allows without a service loop in the connector (cites:). The absolute single-turn 22-bit encoder (AS22DQC) resolves position to roughly 0.00009° per count at full 360°, which is fine for the commutation alignment on the SINAMICS S210 but means absolute multi-turn retention is not provided by the encoder alone — the drive holds the position referenced. IP65 is the shaft-housing seal, not a submersion rating, so this frame is appropriate for cutting-fluid splash zones inside a guarded machine envelope but not for a washdown cabinet exterior (cites:). For a pharmaceutical line under 21 CFR Part 11 change control that dossier trail matters — the motor is qualifiable against the on-file substance declaration rather than a fresh vendor survey.
Built-to-order class and how to order
Product class is C: the unit is built to order, non-returnable for credit, and configured per the order code — every 1FK2204-5AK01-1SA0 is a fresh build rather than stocked finished-goods (cites:,). Export classification is AL:N / ECCN:N_CNDU, which keeps commercial shipment inside the standard export-control envelope with no special licence routing (cites:). For a validation-bound buyer the right move is to lock the motor order code and the drive order code together in the BOM before the line is frozen, because changing the encoder variant later invalidates the as-built trace.