What the 0.32 Nm rating means for motion-control sizing
The 1FL2102-4AF00-0SC0: The rated torque of 0.32 Nm fixes the continuous torque budget at that shaft — choosing a motor that runs near its thermal ceiling continuously means the motor's thermal time constant and convection path at the cabinet mounting determine how often peak torque is available before thermal limiting trips. For a pick-and-place axis or a feeder drive where the cycle is short and the average torque stays well below 0.32 Nm, this motor is correctly sized; for a holding or low-speed indexing axis that approaches rated torque for seconds at a time, the 20 mm shaft height is a mechanical constraint that governs the coupling and belt-pulley design rather than the torque number itself. Rated 100 W input at 3000 rpm — the power figure tells the drive-sizing engineer how much current the SINAMICS S200 will supply at rated speed; the actual mechanical output is the rated torque multiplied by angular velocity, so at 3000 rpm and 0.32 Nm the output is roughly 100 W, meaning this motor runs near its peak efficiency at that operating point.
21-bit encoder resolution and plain-shaft fit
The 21-bit hybrid encoder provides fine resolution for high-positioning-accuracy tasks — 21 bits of position data per revolution translates to approximately 2,097,152 counts per turn, which is the resolution the SINAMICS S200 controller receives for closed-loop positioning. That resolution matters for electronic gear-boxing and for any axis where the ball-screw lead or belt ratio would amplify encoder error. Plain shaft with no holding brake means the motor relies entirely on the drive for braking — on a vertical axis the S200 must be configured with regenerative braking or an external resistor to prevent the load from dropping during a power-off or fault condition. If a holding brake is needed, the matching variant in the same 1FL2 family includes it.
IP54 in an industrial servo context
IP54 means the motor housing is protected against dust above the contact threshold and against water spray from any direction — it is not washdown-rated and not suited for coolant-flooded environments, but it handles the condensation and non-directed splash that occurs inside a typical electrical cabinet or on a machine tool enclosure.
Active and manufactured-to-order — sourcing implications
The product is Active and belongs to Product Class C — motors manufactured to order and not returnable against credit. This means the procurement path runs through the franchise channel or an authorized source; quantities are confirmed at RFQ and the manufacturing lead time follows the standard Siemens configure-to-order cycle for SINAMICS S200 paired motors. RoHS compliance since 1 January 2018 and REACH Article 33 duty-to-inform substance documentation are available — the Reach Information documentation from Siemens covers the candidate list duty for this date-of-manufacture window.