What this motor is, and what pairs with it on the bench
The 1FL2105-4AF01-1MB0 is a SIMOTICS S-1FL2 low-inertia servomotor from the 1FL2 family designed to run on a SINAMICS S200 drive, supplied as 400 V 3AC with a rated output of 2 kW at 3000 rpm and a continuous stall torque of 8 Nm against a rated torque of 6.6 Nm at nominal speed. The shaft height is 52 mm, with a keyed shaft in N tolerance, an AM21bit absolute encoder on an angular connector, no holding brake, and IP65 protection with an oil seal at the shaft exit — the configuration buyers typically select for horizontal motion axes where the brake is supplied externally or not required.
Ratings in the terms that decide fit
Pn = 2 kW at Nn = 3000 rpm and Mn = 6.6 Nm is the continuous S1 operating point; M0 = 8 Nm is the stall torque the drive and mechanics must absorb without tripping on a stall-current limit during accel or hold-position moves. Supply voltage is 400 V 3AC, which sets the upstream branch protection and cable sizing class; 400 V class drives typically expect SCCR coordination and EMC practice suited to industrial cabinets rather than single-phase light-industrial rails. IP65 with oil seal is the relevant ingress story for this motor — sealed against dust and low-pressure water jets, suitable for washdown-adjacent zones and plant floors where cutting fluid or coolant mist reaches the machine, while the oil seal keeps lubricant migration out of the encoder and bearings. The AM21bit encoder on an angular connector feeds position and speed back to the SINAMICS S200 at the resolution the drive needs for servo-loop closure; the angled connector simplifies cable routing in tight machine frames where a straight outlet would clash with the next axis.
Ordering, lifecycle, and what crosses the dock
This is a made-to-order class C item produced against the order, supplied one piece per package, in packaging of 432 x 222 x 240 mm; that is the lead-time and MOQ posture a procurement planner should expect when the BOM lists it — quoted to order against the RFQ quantity, not pulled from a finished-goods shelf.
BOM-fit note for the next build
On the bill of materials, this motor pairs one-to-one with the SINAMICS S200 drive family listed in the description, so the drive and motor share a single sourcing decision and a single commissioning manual rather than two cross-vendor integration steps; the absence of a holding brake means any vertical-axis safety function lives in the drive's stop-category logic or a separate brake resistor path, not in this motor.