What this order code actually is
The 1FK2104-4AF00-0MB0-Z Y01 is a Siemens SIMOTICS S-1FK2 HD servo motor in the high-dynamic (HD) family, with M0=1.27 Nm stall torque and a rated output of PN=0.4 kW at nN=3000 r/min on a 380-480 V drive bus, or PN=0.2 kW at nN=1500 r/min on a 200-240 V drive bus — meaning the same motor windings carry two operating points depending on which SINAMICS S120 line module is feeding it, which is the so-what behind the dual rating on the nameplate. It ships with an absolute encoder AM22DQC (22-bit single-turn plus 12-bit multi-turn) terminated to a DRIVE-CLiQ plug M17, and a power connector size M17 — the DRIVE-CLiQ link is what carries both the encoder feedback and the electronic nameplate into the drive on first connection, so the drive auto-identifies the motor without manual parameter entry at commissioning. Mechanical interface is a cylindrical shaft D19×40 mm with IP64 degree of protection on the body — IP64 is dust-tight and splash-resistant from any direction, which is fine for a cabinet-internal mount but is NOT a washdown rating, so if the panel sits in a wet or food-grade zone the motor itself needs an enclosure.
Sourcing reality for a Y01-configured motor
The lifecycle stage is recorded as current, and the product class is the Siemens "C" class — products manufactured / produced to order, which cannot be reused or re-utilized or be returned against credit, so this is not a shelf-stock SKU; it is built to the Y01 special configuration once a purchase order is in hand, which is the first thing a procurement planner needs to know before requesting a lead-time promise. Group Code is R220 and Product Group is 9021 in the Siemens internal ordering structure — the same pair the storeroom uses to file the line item, so a BOM imported with those two fields ties cleanly to the manufacturer's configurator and avoids the "wrong revision" trap on re-order.
How the SIMOTICS S-1FK2 HD drops into a SINAMICS panel
Pairing is with the SINAMICS S120 drive family via DRIVE-CLiQ — the M17 feedback connector carries encoder data and electronic nameplate, so a controls integrator commissioning a line gets automatic motor identification at first power-up rather than a manual parameter download. The shaft D19×40 mm and IP64 body suit a standard machine-architecture mount (gearbox input, coupling to a load) inside an enclosure — what fails in the field on this family is almost always the cable run, not the motor itself, so routing the DRIVE-CLiQ and power leads with the supplied M17 connectors and the manufacturer's bend-radius spec is the real reliability lever, not the motor selection.