What you're bolting to the machine
The 1FL6090-1AC61-2LG1 is a Siemens SIMOTICS S-1FL6 servomotor built for the SINAMICS V90 drive family — 3-phase 400 V operating voltage, 2.5 kW rated power at 2000 rpm, with M0=15 Nm stall torque and MN=11.9 Nm rated torque on a 90 mm shaft-height frame. It ships with a 20-bit absolute encoder (12-bit multi-turn), a plain shaft with N tolerance, no holding brake, and an angle plug — the standard V90-system motor configuration for that power slot. IP65 with the sealing ring in place means the motor body tolerates dust and low-pressure washdown on the factory floor, but it's not a food-grade submergence rating — keep it out of direct jet and immersion duty.
Fit for the V90 line — and what the rating means in panel terms
2.5 kW at 2000 rpm with M0=15 Nm puts this in the mid-power V90 slot — typical duty is conveyor indexing, small-format packaging, labeling heads, and light pick-and-place where the 15 Nm stall handles the acceleration transient without bogging the drive. The 20-bit absolute encoder (12-bit multi-turn) gives 1,048,576 counts per revolution with 4096 turns of multi-turn memory — positioning is retained after power-down without a battery-backed homing routine on restart.
Lifecycle posture and what NRND means for the order
No official successor or pin-compatible second source is on the record for this order code; if a new-design substitution is needed, verify the current 1FL6 successor against the SINAMICS V90 motor table before locking the BOM line. For existing fleets, the part falls into the spare-and-repair supply lane — quoted against the RFQ through independent distribution, with current availability and pricing confirmed at quote time.
Compliance and cataloguing notes
RoHS compliance dates to 01-01-18 on this product line; REACH Art. 33 candidate-list duty-to-inform applies, so the latest SVHC declaration travels with the shipment documentation. Catalog fields list Group Code R220, Product Group 5183, export-control markings AL:N / ECCN:N — no export license gate for standard commercial destinations. Product class is "made to order / no return credit" — order the correct frame, encoder, and brake option up front, because returns against credit aren't an option on this product class.