Slot in the SINAMICS S120 line, and what the ratings cover
The 1FK2104-5AF11-0MB0 is a SIMOTICS S-1FK2 HD servo motor from the 1FK2 servomotors for SINAMICS S120 family, so it talks natively to a SINAMICS S120 drive over the DRIVE-CLiQ plug — no separate encoder cable to land at the cabinet, and the drive auto-detects the connected motor on first power-up. Stall torque M0 = 2.4 Nm sets the upper bound for any positioning or start-stop cycle on the driven axis; rated power PN = 0.75 kW at nN = 3000 rpm on a 380-480 V bus covers the constant-power speed range of the axis, while PN = 0.375 kW at nN = 1500 rpm on the 200-240 V window covers 230 V-class drive cabinets where the same motor runs at half speed.
Encoder, brake, and connector set
Position feedback is the absolute encoder AM22DQC — 22-bit single-turn plus 12-bit multi-turn resolution — which means the axis position is retained across power cycles without a homing routine on every restart, a useful trait on packaging or converting lines that trip on mains loss. Power connector size M17 and DRIVE-CLiQ plug M17 are the two round connectors at the terminal box end of the motor; on a panel-builder cut-sheet they map directly to the matching M17 cable sets supplied by Siemens for the S120 drive line.
Lifecycle and compliance posture
Compliance stack is narrow but explicit: RoHS conformity since 01-07-06 and REACH Article 33 duty-to-inform per the current candidate list apply on every shipment into the EU. Export control markings are AL:N / ECCN:N_CNDU, which on a customs document means no licence is required for the standard destinations; any restricted-country shipment still needs its own licence check at order entry. Procurement metadata worth pinning to the BOM line: Group Code R220, Product Group 9021, Quantity Unit 1 Piece, packed in a 452 x 250 x 267 mm shipper — that footprint is the carton size to plan around on receiving and storage, not the motor itself.