What it is and how it pairs with the drive
The 1FL6094-1AC61-2AB1 is a Siemens SIMOTICS S-1FL6 low-inertia servo from the 1FL6 family for SINAMICS V70 and V90 converters, sized at 5 kW continuous (Pn) from a 3-phase 400 V supply and rated for a nominal speed of 2000 rpm. Stall torque (M0) is 30 Nm and continuous-rated torque (MN) is 23.9 Nm, so the operating envelope spans roughly that band once the drive's current loop is tuned to the motor's thermal model. It carries an incremental encoder at 2500 increments/revolution, a feather-keyed shaft, an integrated holding brake, and an angle plug for the power/feedback interface — the mechanical format that drops onto the SINAMICS V90 drive's matching motor cable without an adapter. IP65 with the sealing ring fitted means the body is sealed against water jets and dust, which is the rating a washdown-adjacent cell or a vertical-axis machine tool typically demands.
Mechanical envelope — what's on the nameplate
Shaft height 90 mm places this in the 1FL6 frame 9 mid-range, the size bracket that bridges the smaller 1FL604 and 1FL606 frames and the larger 1FL60 higher-frame siblings. Shipping carton dimensions are 595 × 369 × 415 mm per piece, so a single-unit order ships in a freight carton sized for forklift handling rather than a courier envelope.
Lifecycle — NRND and what that means for the next BOM
The part carries a lifecycle stage of NRND (Not Recommended for New Designs) per the manufacturer record, while the product description also lists current. The practical read for procurement: existing installations continue to be supported and spare-part orders flow, but Siemens is steering new designs to the current-generation replacement. That drives the standard procurement posture: confirm the motor variant, encoder type, brake option, and connector orientation against the BOM line before the PO, because once the unit ships the cancellation window is closed.
Compliance and administrative identifiers
RoHS compliance has been in force since 01-01-18, and the part is subject to REACH Art. 33 information duty with the current SVHC candidate list applicable. For the PO and the declaration-of-conformity file, the manufacturer-issued identifiers are Group Code R220 and Product Group 5183 — those are the codes customs and the Siemens configurator use to disambiguate this variant from its siblings.