{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"WL280-2R4331","brand":"SICK","brandSlug":"sick","productSlug":"WL280-2R4331","canonicalUrl":"https://aoctrl.com/sick/WL280-2R4331","factsUrl":"https://aoctrl.com/api/mcp/products/WL280-2R4331","rawCanonicalId":null},"summary":{"shortDescription":"SICK W280-2R series, photoelectric retro-reflective sensor, 15 m range, change-over contact (CO) output, 24-240 V AC/DC, 2 m cable, IP66/IP67, WL280-2R4331.","salesMarkdown":"The SICK WL280-2R4331 is a retro-reflective photoelectric sensor from the W280-2R series, delivering a 15 m sensing distance with a visible red LED light source. That 15 m range covers most conveyor and pallet-detection applications in warehousing or packaging lines — a standard retro-reflective reflector at the far end gives you a reliable break-beam trigger. The change-over contact (CO) output means it switches both NO and NC contacts in one package, so you can wire it for fail-safe (NC breaks on beam interruption) without an extra relay. Supply voltage spans 24 to 240 V AC/DC, which lets it drop into existing control circuits without a dedicated DC power supply — common on retrofit jobs where the panel runs 120 VAC control. ## Response time and switching logic At 15 ms response time, this sensor is suited for object detection at moderate line speeds — think cartons on a belt at 1-2 m/s, not high-speed part counting on a pick-and-place. The light/dark ON switching mode (selectable) lets you choose whether the output activates when the beam is made or broken, matching the logic of your PLC input or safety circuit. ## Environmental sealing and wiring Rated IP66 and IP67, the housing and optics withstand hose-down cleaning and temporary submersion — necessary for food-and-beverage washdown zones or outdoor conveyor sections exposed to rain. The 2 m integral cable (PVC, typically) terminates directly into a junction box or sensor connector; no separate pigtail or M12 plug to lose. Dimensions are 23.5 mm wide, 78 mm tall, 63 mm deep — a compact footprint that fits alongside other W280-series sensors on a common bracket.","metaTitle":"SICK WL280-2R4331 Retro-Reflective Sensor, 15 m, Change-Over","metaDescription":"SICK WL280-2R4331 photoelectric retro-reflective sensor, 15 m range, change-over contact output, IP66/IP67, 24-240 V AC/DC. Current production, sourced to order. Request a quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Photoelectric Sensors"],"specifications":{"Width":"23.5 mm","Height":"78 mm","Length":"63 mm","Series":"W280-2R","Light Type":"LED, Visible Red Light","Sensor Type":"Photoelectric Retro-Reflective Sensor","Response Time":"15 ms","Switching Type":"Light / Dark ON","lifecycle_stage":"current","Termination Type":"Cable, 2 m","Protection Rating":"IP66;IP67","Sensing Distance Max.":"15 m","Sensing Distance Min.":"10 mm","Operating Voltage Max.":"240 V","Operating Voltage Min.":"24 V","Operating Temperature Max.":"55 °C","Operating Temperature Min.":"-25 °C","Optical Sensor Output Type":"Change-Over Contact (CO)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$88.09 – $142.32","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/d6d1defb40334104700558be7f6faed6.pdf","sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/WL280-2R4331/alternatives.json"},"ai":{"faq":[{"question":"What is the sensing range of the WL280-2R4331?","answer":"The WL280-2R4331 has a maximum sensing distance of 15 m with a minimum of 10 mm, using a visible red LED light source in retro-reflective mode."},{"question":"What output type does the WL280-2R4331 have?","answer":"It provides a change-over contact (CO) output — a single relay with both normally-open and normally-closed contacts, rated for the 24-240 V AC/DC supply range."},{"question":"What is the response time of this sensor?","answer":"The WL280-2R4331 has a 15 ms response time, suitable for moderate-speed object detection on conveyors and packaging lines."},{"question":"Where can I buy the WL280-2R4331?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/sick/WL280-2R4331","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/sick/WL280-2R4331 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}