Device identity and declared status
ILS1B851S1342 is the Schneider Electric Lexium integrated drive with stepper motor — a self-contained servo/stepper stage that combines motor, feedback, and drive electronics in a single mechanical unit for compact motion axes. The factory record carries this order code as obsolete, so the active channel is closed and any replenishment comes from independent stock rather than a fresh production run.
Sourcing posture for an obsolete Lexium unit
Once a Lexium integrated drive steps out of production, the only source is independent distribution — the original line is closed and there is no current stock coming off the Schneider Electric factory floor for this code. Quote requests on a discontinued servo drive are filled lot by lot from broker and surplus inventory; availability, conditioning, and unit traceability are confirmed at RFQ rather than from a live catalogue listing.