What the motor delivers on the machine
The 1FK2104-5AF11-1MB0 is a SIMOTICS S-1FK2 HD servo motor sized for SINAMICS S120 drive systems, with M0 = 2.4 Nm static torque and a holding brake — the form factor that drops into high-dynamic positioning axes where the brake holds the load at standstill without a separate clamping element. Output ratings split across two voltage rails: PN = 0.75 kW at nN = 3000 rpm on 380-480 V supply, and PN = 0.375 kW at nN = 1500 rpm on 200-240 V — the lower-voltage figure is the derated operating point, not the headline power ceiling. Encoder is the 22-bit single-turn + 12-bit multi-turn absolute (AM22DQC), wired through a DRIVE-CLiQ M17 plug; power exits through a size M17 power connector. IP65 sealing on the housing suits washdown-adjacent and factory-floor cabinet-free mounting, while the D19 x 40 mm shaft with feather key accepts the standard servo coupling and gearbox inputs.
Lifecycle, compliance, and order class
Product class C means the unit is built to order and is not returnable against credit — quoting against an RFQ is the only sourcing channel; there is no stock-and-return shelf behind this code. Export classification is AL:N / ECCN:N_CNDU, so the part ships without a licence gate on the standard export paperwork.
Spec notes a panel builder and commissioning engineer both flag
Packaging is one piece per pack at 452 x 250 x 267 mm — the motor is shipped individually configured, not in a multi-pack, so receiving inspection counts and trace the serial against the PO line. The DRIVE-CLiQ interface means the encoder and electronics data plate are read by the SINAMICS S120 control at power-up; firmware / topology version on the drive side has to accept the AM22DQC encoder profile for the absolute position to map cleanly on first commissioning. Group code R220 and product group 9021 are the Siemens-internal classification keys on this line — useful when filing an MRO spare against an existing Siemens parts list or warranty record.