What the part is on the SINAMICS bus
The 1FK2204-5AK00-1MB0 is a SIMOTICS S-1FK2 CT servo motor sized for the SINAMICS S120 drive platform — shaft D19x40 mm with feather key, IP64, AM22DQC 22-bit + 12-bit multiturn absolute encoder, and DRIVE-CLiQ M17 plus power connector M17 for a single-cable-style connection back to the drive. The headline electrical envelope is M0 = 2.4 Nm, PN = 0.57 kW at nN = 6000 rpm on 380-480 V, with a second rating of PN = 0.75 kW at nN = 3000 rpm on 200-240 V — so a single winding covers both 230 V-class and 400 V-class SINAMICS line sections without rewiring the motor. Current-loop bandwidth is pinned to 8 kHz / 62.5 µs — that figure is the gating parameter for any cyclic drive commissioning on this motor, because the SINAMICS S120 current controller has to be clocked at exactly that rate to hit the rated torque response.
Order codes and what the catalog keys on
Group Code R220 and Product Group 9021 are how Siemens indexes this motor inside the catalog; the buyer or planner sees those on every quote line, MRP record, and reorder document, so they should land on the same PO header as 1FK2204-5AK00-1MB0. Commercial terms are non-standard: Product class C means the motor is built-to-order and cannot be returned for credit, so any MRO stock should be sized to a confirmed rebuild plan rather than a returnable spares pool. Shipping carton footprint is 452 x 250 x 267 mm — relevant when pre-allocating shelf space for incoming spares, since 1FK2 motors ship individually (Quantity Unit 1 Piece, Packaging Quantity 1).
Compliance posture for the BOM
RoHS compliance is in effect since 01-07-06, and REACH Art. 33 duty-to-inform is carried against the current candidate list — both have to be acknowledged in the project's substance-compliance declaration before the motor goes into a CE-marked assembly. Export classification is AL:N / ECCN:N_CNDU, which means no dual-use export licence is required for cross-border shipment of the bare motor — paperwork at the freight forwarder stays at the standard commercial-invoice level.