What you're bolting to the cabinet
The 1FL6042-1AF61-2LB1 is a SIMOTICS S-1FL6 low-inertia servomotor from Siemens sized for 3-phase 400 V operation, rated 0.4 kW at a nominal speed of 3000 rpm, with a standstill torque M0 of 1.9 Nm and rated torque MN of 1.27 Nm — a short-frame, high-speed machine for light positioning axes such as pick-and-place, small indexing tables, and conveyor diverters. It belongs to the 1FL6 family that pairs natively with the SINAMICS V70 and V90 drive platforms, so wiring, encoder feedback, and commissioning macros stay inside that ecosystem — the motor side is designed to plug in without a third-party cable harness.
Shaft, feedback, brake, and sealing
Shaft height is 45 mm with a feather key and tolerance N, terminated through an angle plug — the right-angle connector keeps the cable bend radius predictable inside tight machine frames. Feedback is a 20-bit absolute encoder with 12-bit multi-turn, so the drive retains absolute position through power cycles — useful for machines that home once and never re-reference on every restart. An integrated holding brake is fitted, and the housing carries IP65 with the sealing ring in place — meaning the motor body tolerates typical plant-side coolant splash and dust ingress when the cable gland and shaft seal are correctly seated.
Lifecycle read: NRND, not yet discontinued
Existing spare-part and running-series demand is still served, but new machine designs are steered to the current-generation alternative; the part is not flagged as discontinued and no official LTB date appears on this record. Because it is built to order in product class C (manufactured per order, non-returnable), supply is confirmed against each request — no standing stock pool on the manufacturer side, which is normal for this configuration.
Compliance and packaging notes
RoHS substance compliance has been in effect since 01-01-18, and the REACH Article 33 candidate-list obligation is discharged through the standard Reach Information notice — the documentation a buyer expects for shipment into the EU/EEA. Shipping carton is 432 x 222 x 250 mm for a single-piece quantity unit.