Sourcing posture for an active SINAMICS-tied servo
The 1FK2104-5AF00-0SB0: It belongs to the 1FK2 servomotor family, designed to pair with SINAMICS S120 drive systems via the DRIVE-CLiQ plug on the motor — a buyer specifying this code is committing to the Siemens drive ecosystem, not a third-party controller.
What the torque and speed envelope actually deliver
The motor carries a stall torque M0 of 2.4 Nm and a rated power of 0.75 kW at 3000 rpm on a 380–480 V supply, with a second rating point of 0.375 kW at 1500 rpm on 200–240 V — the lower-voltage point exists so the same frame can be deployed on 230 V regional mains without changing the mechanical package. Feedback is an absolute encoder AS22DQC at 22-bit single-turn resolution, which is what the SINAMICS S120 expects for commutation without an external homing routine on power-up — single-turn means absolute position across one mechanical revolution only, so multi-turn applications need a gearbox reference or a different encoder option. Mechanical envelope is a cylindrical shaft D19 x 40 mm with IP64 protection on the housing — IP64 seals against dust ingress and splashing water, suitable for inside-cabinet mounting or light industrial environments, but not rated for washdown or direct outdoor exposure.
Connectors and what they mean at the panel
The DRIVE-CLiQ plug on the motor is the M17 size variant — DRIVE-CLiQ is the proprietary Siemens hybrid cable carrying power for the encoder and real-time feedback in one shielded line, so the cable set must be sourced from the Siemens MOTION-CONNECT range to preserve the drive's automatic motor recognition on first connection. The power connector is also M17, which keeps the cable OD larger than the smaller M23 used on lighter 1FK2 frames — a panel builder laying out the cabinet needs to budget the M17 bend radius and gland plate cutout accordingly, especially where the motor sits on a moving axis.
Compliance and ordering context
RoHS compliance is recorded since 01-07-06 and REACH Art. 33 candidate-list information is available from Siemens — both are the substance-restriction declarations a European integrator expects on the shipping documents. Export-control classification on this code is AL:N / ECCN:N_CNDU, which generally means no special export licence is required for routine cross-border shipment — useful to flag for buyers moving stock between regions where ECCN review would otherwise slow a delivery. Group code R220 and product group 9021 are Siemens-internal ordering references used on the packing list and invoice; they do not change the part but help match the line on a Siemens-generated order acknowledgement.