5 kW, 30 Nm servomotor for the SINAMICS V90 line
The Siemens 1FL6094-1AC61-2LB1 is a SIMOTICS S-1FL6 low-inertia servomotor from the 1FL6 family, sized to pair with SINAMICS V70 and V90 converters. It runs on a 3-phase 400 V supply, delivers a rated power of 5 kW at 2000 rpm, holds 23.9 Nm continuous torque and 30 Nm peak (M0) — so headroom for acceleration and shock loads on a positioning axis without slipping into field-weakening. The 90 mm shaft height with feather key, holding brake, and right-angle (angle plug) connector covers the standard mounting case for the 1FL6 frame. The 20-bit absolute encoder — 12 bits of multi-turn — gives roughly 4096 revolutions of retained position after power-down, which is enough for a tool-changer or rotary table but worth checking against any axis that parks beyond 4096 turns.
IP65 sealing and compliance posture
The motor body and the cable entry carry IP65 with the sealing ring fitted, which keeps coolant and cutting-fluid splash off the encoder and bearings in a machine-tool or washdown-adjacent cell. Export classification is AL=N / ECCN=N, so no license gate on cross-border shipments.
Lifecycle: NRND, spares only
Lifecycle stage is NRND — Not Recommended for New Designs. The frame remains orderable to support installed-base machines running SINAMICS V70/V90, but new axis builds should be steered at the current S-1FL6 successor frame rather than this code. The catalog flags it as a made-to-order item with no return-for-credit path, which is the normal posture for a configured servo. Group Code R220 and Product Group 5183 are the internal catalog handles for this line. Packaging is single-piece at 595 x 369 x 415 mm — plan crate and crating space accordingly for a 5 kW servo shipment.