Siemens 1FK2104-6AF00-0SA0 SIMOTICS S-1FK2 HD 3.2 Nm 1 kW Servo Motor

The Siemens 1FK2104-6AF00-0SA0 is a SIMOTICS S-1FK2 HD synchronous servo motor with 3.2 Nm standstill torque, dual-rated 1 kW at 3000 rpm on 380-480 V and 0.5 kW at 1500 rpm on 200-240 V. It uses an absolute single-turn 22-bit encoder (AS22DQC) over a single OCC feedback cable, matched to the SINAMICS S210 servo drive.

Selection Notes

At 3.2 Nm this is the higher-torque winding in the 1FK2104 frame compared with the 2.4 Nm variant, while both share the same D19 x 40 mm shaft and M17 connector footprint. The 380-480 V rating doubles both speed and power versus the 200-240 V rating at the same torque, so the supply voltage choice should follow the machine's speed requirement rather than torque alone. The OCC cable combines power and absolute feedback in one run, and the single-turn AS22DQC encoder resolves position within one revolution at power-up, meaning multi-turn indexing axes still need a homing move.

Applications

Suited to conveyor drives, indexing axes, and small material-handling stations that need more torque than the 2.4 Nm 1FK2104 variant, run from a SINAMICS S210 servo drive. IP64 covers dust and splash from any direction, not washdown or submersion.