{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"VL18-3P3140","brand":"SICK","brandSlug":"sick","productSlug":"VL18-3P3140","canonicalUrl":"https://aoctrl.com/sick/VL18-3P3140","factsUrl":"https://aoctrl.com/api/mcp/products/VL18-3P3140","rawCanonicalId":null},"summary":{"shortDescription":"SICK VL18-3P3140 Photoelectric Retro-Reflective Sensor, PNP, Dark-on, M18 connector, 3.5 m range, IP67, 10-30 V DC.","salesMarkdown":"## Sensor fit and output logic The SICK VL18-3P3140 is a photoelectric retro-reflective sensor in the VL18 cylindrical family, using an M18 threaded barrel (18 mm diameter, 66 mm body length) with a built-in M18 4-pin connector. It detects objects at up to 3.5 m (3.7 m max) by sensing the return of its own light beam from a separate reflector — no target-side wiring needed. The PNP output is configured dark-on (dark switching), meaning the output transistor turns on when the light path is blocked. That logic suits applications where you want a signal when an object interrupts the beam — part-present, jam detection, or edge-of-web sensing. ## Washdown-rated barrel Rated IP67, the stainless steel or nickel-plated brass barrel (material not specified in the listing but standard for this series) withstands hose-down and wet environments — food processing lines, car washes, outdoor conveyor gantries. The M18 connector mates with standard 4-pin cordsets; no panel wiring through the barrel. Operating temperature spans -25 to 70 °C, covering most factory floor and outdoor enclosure conditions without derating.","metaTitle":"SICK VL18-3P3140 Photoelectric Retro-Reflective Sensor, 3.5","metaDescription":"SICK VL18-3P3140 photoelectric retro-reflective sensor, PNP dark-on, 3.5 m range, IP67, 10-30 V DC. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Photoelectric Sensors"],"specifications":{"Type":"Photoelectric Retro-Reflective Sensor","Model":"VL18-3P3140","Weight":"50 g","Condition":"Used","Shelf No.":"201205","Connection":"M18","No. of Pin":"4","Length [mm]":"66","Manufacturer":"Sick","Diameter [mm]":"18","Sensing Range":"3.5 m","Connector Type":"M18 Connector","Switching Mode":"Dark on","Type of Product":"Photoelectric Retro-Reflective Sensor","lifecycle_stage":"current","Enclosure Rating":"IP67","Switching Output":"Dark Switching","Electrical Design":"PNP","Max. Voltage [DC]":"30","Min. Voltage [DC]":"10","Operating Current":"100 mA","Operating Voltage":"10 … 30 V DC","Sensing Range max.":"3.7 m","Nominal Voltage [DC]":"24","Max. Sensing Range [mm]":"3500","Min. Sensing Range [mm]":"0","Diameter, Housing Length":"18, 66 mm","Ambient Operating Temperature":"-25 … 70°C"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$28.50","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/VL18-3P3140/alternatives.json"},"ai":{"faq":[{"question":"What is the sensing range of VL18-3P3140?","answer":"The VL18-3P3140 has a sensing range of 3.5 m (maximum 3.7 m) in retro-reflective mode."},{"question":"Where can I buy VL18-3P3140 and get current pricing?","answer":"The VL18-3P3140 is sourced and quoted to order against an RFQ through independent distribution; availability and current pricing are confirmed at quote time."},{"question":"Will VL18-3P3140 drop into a panel wired for VL180-P460?","answer":"No — the VL18-3P3140 uses an M18 4-pin connector, while the VL180-P460 uses an M12 4-pin connector. The M18 barrel diameter is the same (18 mm), but the connector and cable assembly would need to be swapped."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/sick/VL18-3P3140","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/VL18-3P3140 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}}