What you're looking at on the nameplate
The 1FK2104-4AK10-2SB0 is a SIMOTICS S-1FK2 HD synchronous servo motor built around a permanent-magnet rotor, delivered as a short-stack cylindrical unit with D14 x 30 mm shaft and an IP64-sealed housing. M0 sits at 1.27 Nm, so the part is sized for low-inertia point-to-point axes — small-format gantries, indexing tables, packaging indexing, and similar compact motion loads rather than heavy direct-drive rolls. Rated output is 0.6 kW at nN=6000 rpm on a 380-480 V bus, dropping to 0.4 kW at nN=3000 rpm on 200-240 V. The dual voltage rating is the figure that decides whether you can reuse this motor on a 230 V regional machine versus a 400 V European line; both speed points are real rated points, not a single rated speed with a derate.
Encoder, brake and the connector stack
Feedback is a 22-bit single-turn absolute encoder (AS22DQC) terminated through a DRIVE-CLiQ plug on an M17 connector body — the same digital comms interface used across the SINAMICS S120 family, so commutation, absolute position and electronic nameplate all travel over a single shielded cable back to the drive. A holding brake is fitted as standard on this code, which matters for vertical-axis drop protection and for axes that need a mechanical clamp at standstill without keeping the drive enabled. The power connector is also a size M17 plug, matching the DRIVE-CLiQ plug mechanically. In a panel layout, the twin M17 connectors define the cable exit direction and the bend radius you need to leave on the harness — the motor is not the right pick for a fully potted food-grade washdown line because IP64 stops short of the IP67K/69K bands that washdown duty requires.
Sourcing posture
Packaging dimensions are 452.00 x 250.00 x 267.00 mm at one piece per pack. Sourced per RFQ against the configured BOM — lead time and price confirmed at quote time, with no public stock count or immediacy claim made for this configured motor.