{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"XS618B4MBU20","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"XS618B4MBU20","canonicalUrl":"https://aoctrl.com/schneider/XS618B4MBU20","factsUrl":"https://aoctrl.com/api/mcp/products/XS618B4MBU20","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric Telemecanique XS618B4MBU20 inductive proximity sensor, 18 mm barrel, cylinder position sub-category, current lifecycle.","salesMarkdown":"## 18 mm barrel, cylinder-position inductive proximity The XS618B4MBU20 is an 18 mm diameter inductive proximity sensor from the Telemecanique XS range, classified under cylinder position inductive proximity sensors — the 18 mm barrel is a standard form factor for detecting piston position in pneumatic or hydraulic cylinders, where the sensor mounts in a threaded port and senses the cylinder's internal magnet or a ferrous target on the piston. ## Sourcing and cross-reference context No official successor or replacement part number is recorded from Schneider Electric. Peer parts in the same category include the XS9E111A2L2 and XS4P30AB9D2, both inductive proximity sensors from the Square D / Telemecanique line — but the XS618B4MBU20 is an 18 mm cylinder-position variant, while the XS9E111A2L2 and XS4P30AB9D2 are different form factors (the XS4P30AB9D2 is a 30 mm barrel, for example). The XUYAFPCO946S is a photoelectric sensor, not a direct inductive substitute.","metaTitle":"Schneider Electric XS618B4MBU20 Inductive Proximity Sensor","metaDescription":"Schneider Electric XS618B4MBU20 inductive proximity sensor, 18 mm barrel, cylinder position type, current lifecycle. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Proximity Sensors"],"specifications":{"title":"XS618B4MBU20","Category":"Inductive Proximity Sensor","description":"Telemecanique XS618B4MBU20 Ind Prox 18 Mm|Telemecanique XS618B4MBU20 Ind Prox 18 Mm","Sub-Category":"Cylinder Position Inductive Proximity Sensor","UPC 12 Digit":"389119014413","lifecycle_stage":"current","Manufacturer Brand":"Square D Switches & Sensors","Product Description":"Telemecanique XS618B4MBU20 Ind Prox 18 Mm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$225.00","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/7f7684e8d399253cfcbbf2b9fd14e4da.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest functional alternative to XS618B4MBU20?","answer":"The XS9E111A2L2 is another inductive proximity sensor in the same brand family, but it is a different form factor — the XS618B4MBU20 is an 18 mm barrel cylinder-position sensor, while the XS9E111A2L2 is a different variant."},{"question":"What compliance documentation does Schneider Electric provide for XS618B4MBU20?","answer":"The evidence does not list specific compliance certifications (RoHS, REACH, UL, IEC) for this part."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/XS618B4MBU20","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/schneider/XS618B4MBU20 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}