Sizing the 1FK2104-5AK10-0MB0 against the load
The 1FK2104-5AK10-0MB0 is a SIMOTICS S-1FK2 HD synchronous servo motor in the 1FK2 family, intended to be driven by a SINAMICS S120 drive line through its DRIVE-CLiQ M17 plug and matched M17 power connector. The holding brake makes it a fit for vertical axes and gravity-loaded slides where the rotor must remain stationary when the drive stage is de-energized. On the 380–480 V supply the motor delivers PN = 1.07 kW at nN = 6000 rpm; on the 200–240 V supply it delivers PN = 0.75 kW at nN = 3000 rpm. The stall torque M0 = 2.4 Nm sets the short-term load ceiling — sizing should reflect the worst-case acceleration and holding torque, not the rated speed. The 22-bit singleturn plus 12-bit multiturn absolute encoder (AM22DQC) returns position without a homing run after power-up, which removes a step from every machine startup and is a real time-saver on multi-axis cells where each axis would otherwise need to be referenced in sequence.
Mechanical and environmental envelope
The shaft is a plain cylindrical D19 x 40 mm — no keyway — so coupling selection must rely on a clamp or friction fit, not a keyed hub. The IP64 sealing on the body is dust-tight and resistant to splashing water from any direction, but it is not IP67; if the cell sees washdown or coolant mist, an enclosure or shroud is still required. Net shipping carton is 452.00 x 250.00 x 267.00 mm for a single-piece quantity unit — this is a packaged-to-order item, so lead time and carton handling should be planned rather than treated as off-the-shelf stock.
Compliance posture for the BOM file
The motor has been compliant with the RoHS substance restrictions since 01-07-06, and the current REACH Article 33 candidate-list obligations are covered by the published Reach Information statement. Export-control classification is AL:N / ECCN:N_CNDU, so no special export license is invoked for the standard configuration. The product class is C — manufactured or produced to order, not reusable or returnable for credit. That status shapes the procurement workflow: the part is specified into a project, sourced against the order, and not treated as a returnable shelf item.
Production status and how to specify it
Lifecycle stage is current and the product status is Active — the 1FK2104-5AK10-0MB0 is in normal production. No successor or cross-reference is named on the record, so the BOM line stays as specified; a panel builder can lock the order code into the design without flagging it as an obsolescence risk.