Why this motor lands on the BOM as listed
The 1FK2104-5AK00-1MB0 is the SIMOTICS S-1FK2 HD frame in the 1FK2 servomotor family built to ride on a SINAMICS S120 drive line, with standstill torque M0 = 2.4 Nm and two plate ratings that follow the DC-bus voltage: PN = 1.07 kW at nN = 6000 rpm on 380-480 V, and PN = 0.75 kW at nN = 3000 rpm on 200-240 V (cites:). The two ratings share one housing — specifying the lower-voltage rating on a panel fed from the lower bus does not derate the mechanical envelope, so the same brake and coupling selection holds across sites. Mechanical interface is the D19 x 40 mm keyed shaft with a feather key, IP64 sealing on the housing, and an M17 power connector sized for the 1 kW-class continuous duty (cites:). IP64 protects against splash and dust ingress in a packaging-line cabinet or machine-tool gantry — it is not a washdown rating, so specifying it above the drip zone or near coolant is the integrator's call before it ships. The 1FK2 positioning inside the Siemens motion line is the high-dynamic compact range paired with SINAMICS S120 — the 1FK2 family is the matching servomotor line for S120 multi-axis drive racks (cites:). For a packaging-machinery OEM that already standardises on S120, this is the frame that drops into the same commissioning toolchain.
Rating so-what for the line builder
Standstill torque M0 = 2.4 Nm sets the cyclic acceleration budget; the 1.07 kW continuous on 380-480 V is the steady-state load ceiling, while 0.75 kW on 200-240 V maps to the same frame on a 230 V regional supply (cites:). Either rating rides on the same D19 shaft, so the gearbox and coupling choice stay constant across bus voltages — only the drive sizing shifts. DRIVE-CLiQ M17 is the digital feedback and power-link plug, eliminating the legacy resolver cable and giving the S120 controller direct electronic nameplate readback, which shortens cold-start commissioning to a topology scan rather than a manual parameter pass (cites:). The encoder (AM22DQC, 22-bit + 12-bit multiturn) sustains absolute position through power cycles — no homing routine on every restart. IP64 with the M17 power connector and the keyed D19 x 40 mm shaft are the three integration constraints a panel builder handles at mounting time; the rest is topology (cites:). No external fan on this frame — convection from the housing is what removes the 1.07 kW continuous loss, so derating in a sealed cabinet follows the same thermal curve as any convection-only servomotor.
Lifecycle posture for the BOM
Lifecycle status is active — the manufacturer record carries current production stage (cites:,). For a packaging-machinery BOM that lives across multi-year serial runs, an active frame is what keeps the part on the bill of materials without triggering an engineering change. Product class is C: products manufactured / produced to order, which cannot be reused or re-utilized or be returned against credit (cites:). Order quantities match the BOM position — surplus from a cancelled line is not returnable, so the per-unit landed cost decision is set at order time, not at end-of-project close-out. Compliance paperwork for export and substance control: RoHS compliance since 01-07-06, REACH Art. 33 candidate-list duty carried via Reach Information, and export classification AL: N / ECCN: N_CNDU (no special licence required) (cites:,). The single-piece shipper is 452 x 250 x 267 mm (cites:).
For the procurement line on this order code
Group code R220 and product group 9021 are the commercial identifiers that trace this motor back through Siemens configurator and ordering lines — they are not performance ratings (cites:,). Quantity unit 1 piece (cites:) confirms single-unit ordering for this part number; packaging quantity 1 (cites:).