{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"XU5M18U1D","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"XU5M18U1D","canonicalUrl":"https://aoctrl.com/schneider/XU5M18U1D","factsUrl":"https://aoctrl.com/api/mcp/products/XU5M18U1D","rawCanonicalId":null},"summary":{"shortDescription":"Square D (Telemecanique) XU5M18U1D diffuse reflective photoelectric sensor, M18 threaded nickel-plated brass barrel, 20 mm sensing range, 12-24 VDC, PNP NO output, 100 mA load, 4-pin micro connector, IP67, UL/CSA/CE approved.","salesMarkdown":"The XU5M18U1D is a tubular M18 diffuse-reflective photoelectric sensor from the Square D / Telemecanique XU5 series, with a 4-pin micro connector on a 3-wire cable and a PNP normally-open output. Its class job is short-range object detection on a DC control loop — presence verification on a conveyor, part-in-place check on a fixture, or end-of-stroke confirmation where a 20 mm throw is enough and a through-beam pair would be overkill. The M18 threaded barrel in nickel-plated brass and the IP67 sealing make it a natural fit for washdown-adjacent machinery and oily panel-builder environments where a plain plastic-body proximity switch would be marginal. ## Sensing performance Nominal diffuse range is 20 mm with a 0.5 ms on/off response time, which lands at roughly 1000 Hz operating frequency — fine for high-speed indexing and small-part counting but not the device you pick for sub-millisecond registration. The sensing beam is ultraviolet in a light-operate mode, so dark or matte targets read more reliably than mirror-finish surfaces, which would specular-reflect the UV away from the receiver. Ambient window is -13 to 131 °F, which covers most unheated cabinets and mildly conditioned cell enclosures; outside that band the sensor is outside its published envelope. The part carries UL, CSA, and CE marks, so it slots into machinery built for North American and European destinations without opening a separate component deviation. A California Proposition 65 warning applies for diisononyl phthalate and di-isodecyl phthalate — administrative paperwork for the documentation pack rather than an electrical concern, but it does need to travel with the shipment into California.","metaTitle":"Square D XU5M18U1D Diffuse Sensor, 20 mm, PNP NO, 12-24 VDC","metaDescription":"Telemecanique XU5M18U1D M18 diffuse reflective photoelectric sensor, 20 mm range, PNP NO, 12-24 VDC, IP67, UL/CSA/CE. Specified into the BOM against an RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Photoelectric Sensors"],"specifications":{"UPC":"78590125841","Type":"DIFFUSE","Model":"XU5","title":"XU5M18U1D","Approval":"UL, CSA, CE","Category":"Photoelectric Sensors","Material":"NICKEL PLATED BRASS","Enclosure":"IP67","description":"Telemecanique XU5M18U1D Photo-Electric Sensor 240V 200Ma|SQUARE D XU5M18U1D: PHOTOELEC SENSOR 240V 200MA","Construction":"THREADED","Load Current":"100 MILLIAMPERE","Sensing Beam":"ULTRAVIOLET","Sub-Category":"Tubular Reflex/Reflective Photoelectric Sensor","UPC 12 Digit":"389110178268","Response Time":"0.5 MILLISECOND (ON/OFF)","Operating Mode":"LIGHT","Barrel Diameter":"18 MM","Connection Type":"4 PIN MICRO CONNECTOR","Number of Wires":"3","lifecycle_stage":"current","Sensing Distance":"20 MM","Operating Voltage":"12 TO 24 VDC","Manufacturer Brand":"Square D Co.","Product Description":"Telemecanique XU5M18U1D Photo-Electric Sensor 240V 200Ma","Output Configuration":"NO, PNP","Operating Temperature":"-13 TO 131 DEG F","Additional Information":"LED INDICATOR COLOR RED (OUTPUT); OPERATING FREQUENCY 1000 HZ","Full Technical Description":"Diffuse Type; Nickel Plated Brass Material; 4 Pin Micro Connector Connection Type; 3 Wire(S); UL, CSA, CE Approval; 12 to 24 VDC Operating Voltage; IP67 Enclosure; Threaded Construction; -13 to 131 Deg F Operating Temperature; No, PNP Output Configuration; 20 mm Sensing Distance; 0.5 Millisecond (On/Off) Response Time; Light Operating Mode; 100 Milliampere Load Current; 18 mm Barrel Diameter; Ultraviolet Sensing Beam; LED Indicator Color Red (Output); Operating Frequency 1000 Hz; XU5 Model","Proposition 65 Warning (CA)":"WARNING: This product can expose you to chemicals including: Diisononyl phthalate (DINP), which is known to the State of California to cause cancer, and Di-isodecyl phthalate (DIDP), which is known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$173.99","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/305d662e59d4e67dcf8e2bd28ab00f0f.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the sensing range and switching speed?","answer":"Nominal diffuse range is 20 mm with a 0.5 ms on/off response time, which corresponds to the listed 1000 Hz operating frequency — adequate for high-speed indexing and small-part counting, not for sub-millisecond registration work."},{"question":"Is this sensor PNP or NPN, and what voltage does it run on?","answer":"It is PNP normally-open, sourced on 12 to 24 VDC with a 100 mA load rating — wire it to a sinking-input PLC by routing the positive rail through the load, not by treating it as an NPN device."},{"question":"What approvals does the XU5M18U1D carry?","answer":"UL, CSA, and CE are listed on the part, covering North American and European machinery builds without a separate deviation."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/XU5M18U1D","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/XU5M18U1D 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}}