What it is and where it sits
The Telemecanique XS118B3PBL5 is an inductive proximity sensor in the Square D Switches & Sensors Telemecanique XS line — the cylindrical M18 short-body form factor used across packaging, conveying, and discrete-part detection stations. Inductive proximity sensors of this class detect ferrous and non-ferrous metal targets without physical contact, switching a discrete output when the target enters the rated sensing field. They are the standard fit on machine frames, conveyor side guides, and end-of-stroke flag brackets where a limit switch would otherwise wear mechanically.
Lifecycle status and sourcing posture
The on this SKU is listed as current, so it is still being produced and ordered through the standard Square D / Telemecanique channel. For a current-production spare, the procurement move is to specify it into the BOM and quote to order against an RFQ — no last-time-buy window is in play.