What the motor is and what it pairs with
The Siemens 1FL2105-2AF11-0MB0 is a SIMOTICS S-1FL2 low-inertia servomotor sized for the SINAMICS S200 drive platform — a 1.5 kW rated unit running on a 400 V 3AC supply, with 5 Nm standstill torque, 4.6 Nm nominal torque, and 3000 rpm nominal speed. Holding brake and oil-sealed IP65 housing make it a fit for machine builders who need a brake-equipped servo on a panel-mounted S200 converter. Order code belongs to Product Family 1FL2 servomotors for SINAMICS S200.
Ratings and what they mean for sizing
At 400 V 3AC, the 1.5 kW shaft output is the figure that ties to the S200 drive's continuous rating; standstill torque of 5 Nm gives roughly 8% headroom above the 4.6 Nm nominal, which is the overload margin for short acceleration ramps before the drive's current limit engages. The 3000 rpm nominal speed is what the SINAMICS S200 speed loop is tuned to — going substantially above it pushes the field-weakening region where torque drops with speed. The shaft-height 52 mm frame with an angular connector and a 21-bit AM encoder fits the standard S200 one-cable motor ecosystem; the plain shaft with N tolerance accepts the matching coupling or pinion without re-machining. IP65 with oil seal is the enclosure class to look for when the gearbox or transmission side throws oil mist at the shaft entry.
Sourcing posture for a built-to-order servo
Product class is recorded as built-to-order: the item is produced against the order, cannot be returned for credit, and packaging is a single piece in a 432 x 222 x 240 mm shipper. Export-control classification shows AL:N / ECCN:N, which simplifies cross-border paperwork for standard industrial shipments.