What it is
The Telemecanique XS1N05PB311 is a tubular inductive proximity sensor from the XS1 series — a threaded-barrel, short-body inductive switch used as a non-contact position detector in automation panels and on-machine mountings.
Lifecycle and supply posture
Lifecycle stage is listed as current, so the part remains in normal production rather than being routed through a last-time-buy or surplus channel. For the buyer trying to fill a BOM line, that status means the sensor is specified into the BOM and quoted to order against an RFQ rather than chased on the open market as an obsolete spare.
Field fit notes
As a tubular inductive proximity sensor in the XS1 line, it is ranged against a ferrous target on a moving part and wired back to a PLC fast-input; keep the rated sensing face clear of surrounding metal to preserve the nominal range. On a comms or controller card, plan for one input point per sensor; on the wiring side, follow the Telemecanique XS1 wiring diagram for the specific PNP normally-open variant so the brown / blue / black assignment lands on the right terminals before energising the input card.