Shaft height 90 mm, 5 kW continuous — what fits on the bench
The 1FL6094-1AC61-2LH1 is a SIMOTICS S-1FL6 low-inertia servomotor from the 1FL6 family that pairs with the SINAMICS V70 and V90 converters, with a 90 mm shaft height, 3AC 400 V operating voltage, rated power Pn of 5 kW at Nn 2000 rpm, standstill torque M0 of 30 Nm and rated torque MN of 23.9 Nm. The plain shaft carries an absolute encoder at 20-bit resolution (12-bit multi-turn) and a holding brake, terminating in an angle plug — a standard fit where a V90 drive is already on the panel and a mid-frame axis needs a matched motor. IP65 with the sealing ring seated keeps the body and the connector dry against coolant splash and airborne cutting fluid — what a workcell-side motor actually sees — and the tolerance N rating on the shaft means the coupling alignment budget is the standard one for this frame, not a precision-spindle class.
Ratings in plain terms
Pn 5 kW at 2000 rpm is the continuous S1 duty point; M0 30 Nm is the standstill torque the drive commands during dynamic moves with the rotor held still, and MN 23.9 Nm is what the motor can sustain thermally at rated speed without tripping the i²t foldback in the V90 — so a sizing pass should compare the application’s RMS torque demand against 23.9 Nm, not against the headline 30 Nm. The 20-bit absolute encoder (12-bit multi-turn) means the drive retains position across power cycles without a homing routine on every restart — for a conveyor-indexing or pick-and-place axis that loses reference on every E-stop, the multi-turn counter removes the return-to-home step from the recovery sequence.
Lifecycle — NRND and what that means for the next requisition
The 1FL6094-1AC61-2LH1 is listed as NRND (Not Recommended for New Designs), so Siemens is signalling that the part will move toward discontinuation while still being orderable and supported for installed-base spares — the practical read for a maintenance buyer is that existing machines can keep running on this motor, but new machine builds should evaluate the official replacement path before the BOM freezes.
Buying posture — what a stocked or quoted RFQ looks like
NRND stock at the major franchised lines thins as the part ages; independent distribution carries the new-surplus and traceable used inventory that fills in-service spares demand, and quotes are built against the BOM line with lead time and any quantity breaks confirmed at RFQ. The packaging is one piece per shipper at 595 x 369 x 415 mm — a single-axis drop-ship, not a multi-pack — which is the right format for a maintenance spare but worth flagging on a multi-axis new build where freight maths starts to matter.