What 1FK2204-5AF10-1SB0 brings to a SINAMICS S120 axis
The 1FK2204-5AF10-1SB0 is a SIMOTICS S-1FK2 CT servomotor sized for SINAMICS S120 drives, rated M0=2.4 Nm with PN = 0.75 kW at nN=3000 rpm on a 380-480 V bus and PN = 0.375 kW at nN=1500 rpm on a 200-240 V bus — so the same motor drops onto either voltage rail an integrator meets on a European or North American cabinet build. Ask the dumb question now: which rail are we actually landing on? The 480 V / 3000 rpm envelope is the one that pulls the rated 0.75 kW; the 240 V / 1500 rpm envelope is the half-power derate. Feedback is an absolute encoder single-turn 22-bit (AS22DQC) over DRIVE-CLiQ on an M17 plug, so the resolver-free commissioning path is one cable from motor to drive — no extra SMC/SME box on the cabinet wall. Power exits through a separate size M17 connector, the standard 1FK2 power interface. The motor carries an integrated holding brake, which is what the "with brake" suffix means in this category: it holds the axis at standstill after the drive is powered down.
Mechanical side: shaft, brake, sealing
Shaft is D19x40 mm with a feather key — the D19x40 calls out a 19 mm journal and a 40 mm long keyed section, which is the standard 1FK2 compact-frame coupling and pulley fit. Holding brake is the integrated unit the catalog lists under "with brake," so the mechanical drawing already includes the brake rotor stack length on the B-end face; the gearbox or coupling has to be sized for the full motor L, not the bare-frame figure. Degree of protection IP64 means dust-tight and resistant to splashing water from any direction — fine for a typical inside-cabinet or machine-internal axis, but not a washdown zone. If the line is a food-and-bev or outdoor cell, look at the higher IP65/IP67 siblings in the 1FK2 family instead of trying to seal around this one. Let me show you why: IP64 is a splash rating, not a hose-down rating.
Compliance, classification, and what an order code is buying
RoHS compliance since 01-07-06, with REACH Art. 33 disclosure carried in the Reach Information block — the part ships inside EU substance-restriction rules and the candidate-list duty applies. Export Control Regulations read AL:N / ECCN:N_CNDU, so there is no AL-triggered license and no ECCN-driven US export gate on this code. Siemens' internal taxonomy tags it as Group Code R220, Product Group 9021. Product class C — built-to-order, non-returnable for credit. Quantity unit is 1 piece, packaging quantity 1, in a 452.00 x 250.00 x 267.00 mm pack. That is what the class-C tag means in practice: the lead time is build-driven, not stock-driven, and a cancelled order cannot be returned against credit. Lifecycle is active per the record.