The XS508B1PASA3 is a tubular inductive proximity sensor from Telemecanique, listed under the sub-category of tubular inductive proximity sensors. This form factor is common for detecting metal targets in tight spaces — think sensing a cam lobe or gear tooth on a rotating shaft where a block-style sensor won't fit the mounting hole. Inductive proximity sensors work by generating a high-frequency field that collapses when a metal target enters the sensing zone. The tubular body lets you thread it into a bracket or a tapped hole, and the sensing face is at the tip — so the target approaches axially.
Lifecycle status and sourcing posture
The UPC 12 digit (389119022203) helps with cross-referencing against your own inventory records or supplier databases.
Peer sensors — why form factor matters for fit
That means they have a different mounting footprint and target approach direction. You cannot drop a block sensor into a hole drilled for an M18 or M30 tubular barrel without reworking the bracket or panel.