SIMOTICS 1FK2 HD on the SINAMICS S120 bus
The 1FK2104-5AF00-0MB0 is a SIMOTICS S-1FK2 HD servo motor sized for SINAMICS S120 drive cabinets, delivering a standstill torque M0 of 2.4 Nm and a rated power PN of 0.75 kW at nN = 3000 rpm on a 380–480 V DC-link feed, or 0.375 kW at nN = 1500 rpm when paired with a 200–240 V drive. The high-speed rating puts this frame in the mid-range of the 1FK2 family — sized for dynamic point-to-point axes where the cycle time, not raw torque, drives the motor choice. Feedback is closed through the AM22DQC absolute encoder, 22-bit single-turn plus 12-bit multi-turn, wired to the drive via the DRIVE-CLiQ M17 plug. Power termination is a size M17 connector on the motor housing, so the cabinet end uses the matching pre-fabricated Siemens cable — no field wiring of the DC-link or encoder cores, which matters in retrofit windows where the old resolver loom has to come out cleanly.
Ingress protection and cabinet-side planning
Degree of protection is IP64 — fully dust-tight and resistant to splashed water from any direction, which keeps the motor usable inside an enclosure or on a machine where occasional coolant splash reaches the housing, but not in a washdown or outdoor exposure. For the cabinet builder this drives gland plate choice on the SINAMICS line-up: the M17 cable entries need the matching Siemens grommets, not a generic PG fitting, to keep the IP64 envelope intact at the panel interface.
Compliance and order-class notes
The motor has been RoHS-compliant since 01-07-06, and REACH Art. 33 candidate-list information is published — both are the baseline documents procurement will ask for on a European build. Export-control markings read AL:N / ECCN:N_CNDU, so the part is not on a controlled list and can ship through standard export paperwork without a licence review. Order-class metadata for this code is Group Code R220, Product Group 9021, Product Class C — produced to order, non-returnable. Quantity Unit is 1 Piece with packaging of 452 x 250 x 267 mm, which is what freight planning needs to size the crate for a multi-motor BOM shipment.