Headline rating and what it means on this shaft
The 1FK2204-5AK10-0MB0 is a SIMOTICS S-1FK2 CT servo motor rated M0 = 2.4 Nm continuous stall torque, with two power windows on the nameplate: 0.57 kW at nN = 6000 rpm on a 380–480 V drive bus, and 0.75 kW at nN = 3000 rpm on a 200–240 V drive bus — so the same frame delivers the higher nameplate kW at the lower-voltage window because the speed ceiling drops with the drive bus. It belongs to the 1FK2 family built for the SINAMICS S120 drive platform, which is the relevant point if the panel builder is already running an S120 line module — this motor plugs into that ecosystem through its DRIVE-CLiQ M17 feedback connector rather than a third-party resolver cable.
Mechanical fit, encoder, and current loop
The motor ships with a holding brake, IP64 protection, and a cylindrical D19 x 40 mm shaft — the IP64 rating means dust-tight and splash-proof, fine for inside an enclosure or a sheltered machine frame, not for hosed-down food-and-bev cells. Feedback is an absolute encoder AM22DQC at 22-bit single-turn + 12-bit multiturn resolution, which gives absolute position retention across power cycles without a battery box on the machine — relevant where the application needs the axis to know its home on first enable, not after a homing run. The motor is rated for use only at 8 kHz / 62.5 µs current controller cycle, so when commissioning on SINAMICS S120 the p0115 sampling must be locked to that figure — dropping it to 4 kHz to match an older motor on the line will move the torque ripple and the thermal model off their rated points.
Compliance and product-class posture
The product class is C — produced to order, non-returnable, non-reusable — and the quantity unit is one piece, so a single BOM line ties up a build slot that cannot be credited back if the spec drifts mid-project. Group code R220 / product group 9021 are the administrative codes used on the Siemens price list and shipping documents — useful when matching the PO line against the packing slip and the customs declaration, not selection parameters on their own.