Where this motor belongs on the line
The 1FK2104-4AK10-2MB0 is a SIMOTICS S-1FK2 HD servo motor sized at 0.6 kW (PN) at a rated speed nN = 6000 rpm on a 380–480 V bus and 0.4 kW at nN = 3000 rpm on a 200–240 V bus, so it slots into the lower-power end of a SINAMICS S120 drive cluster where a holding brake is mandatory for vertical or gravity-loaded axes. The M0 = 1.27 Nm stall torque figure on the description line defines the holding torque window the brake has to clear at zero speed; the integrated holding brake removes the need for an external clamp on stop-and-hold moves.
Encoder, brake, and the cable-side details
The feedback is an absolute encoder AM22DQC at 22-bit single-turn + 12-bit multiturn resolution — enough singleturn bits for sub-arc-minute commutation and enough multiturn bits to retain absolute position through power-down without an external battery box on most cabinets.
Production status and order-class handling
Siemens lists the 1FK2104-4AK10-2MB0 as active in production, and Group Code R220 / Product Group 9021 place it in the SIMOTICS S-1FK2 HD ordering-data tree. The part is product class C — manufactured to order, non-returnable, non-reusable against credit — and ships one piece per package (452.00 × 250.00 × 267.00 mm). Commit the configuration at the BOM freeze; this is not a stocked shelf item at the factory.