What this servo drops onto the line
The part is a Siemens SIMOTICS S-1FK2 CT servo motor from the 1FK2 family built for SINAMICS S120 drive systems, listed under order code 1FK2204-6AF10-2SB0. It is rated M0=3.2 Nm continuous stall torque with PN=1 kW at nN=3000 rpm on the 380–480 V supply, dropping to PN=0.5 kW at nN=1500 rpm on the 200–240 V supply — the lower tap is the one to read when the cabinet is fed from a 230 V line. The shaft is a cylindrical D14 × 30 mm, the encoder is a 22-bit single-turn absolute (AS22DQC), the power and feedback both exit through M17 connectors, and an integrated holding brake lets the axis hold position on power removal. Degree of protection is IP64 on the housing — sealed against splashed water and dust ingress but not rated for high-pressure washdown, so it lives inside the cabinet or a covered machine envelope rather than a wet-process skid. DRIVE-CLiQ on the feedback side means commissioning stays in the SINAMICS toolbox: the drive reads the motor nameplate, encoder resolution and brake wiring automatically when the cable is plugged in.
Rating-to-fit read
3.2 Nm continuous stall with 1 kW at 3000 rpm on a 400 V-class bus makes this a compact, mid-range dynamic axis — sized for small parts handlers, indexing tables, labelling heads, and short-stroke gantries where the holding brake has to lock the load at standstill. The 22-bit single-turn encoder gives ~0.00017° resolution per count, which is comfortable for point-to-point positioning and tight registration moves without pushing into the high-end multi-turn resolver range. The D14 × 30 mm cylindrical shaft accepts a standard servo coupling or gearbox input, and the IP64 rating means panel builders can mount it near the process without hermetically sealing the machine around it.
Compliance and documentation on file
The product sits in Group Code R220 / Product Group 9021, and is classified as a made-to-order line — once built against a specific order it cannot be returned against credit, which is a planning input for spares strategy, not a defect.
Lifecycle and BOM posture
Lifecycle is active, so the 1FK2204-6AF10-2SB0 is ordered through the current Siemens channel and quoted per RFQ against the BOM quantity with no official pin-compatible successor on the record — the encoder variant, brake option, and connector type are the three fields that lock the build, so any substitution would need to match all three. Single-piece quantity unit ships in a 452 × 250 × 267 mm pack, and because the part is built to order the lead window is set by the manufacturer queue rather than shelf stock.