{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"WTB4FP-31311120","brand":"SICK","brandSlug":"sick","productSlug":"WTB4FP-31311120","canonicalUrl":"https://aoctrl.com/sick/WTB4FP-31311120","factsUrl":"https://aoctrl.com/api/mcp/products/WTB4FP-31311120","rawCanonicalId":null},"summary":{"shortDescription":"SICK W4F series, WTB4FP-31311120 photoelectric proximity sensor with background suppression, PinPoint LED visible red light, 220 mm sensing range, push-pull output, M8 3-pin connector, IP66/IP67.","salesMarkdown":"The WTB4FP-31311120 is a SICK W4F miniature photoelectric proximity sensor with background suppression. Its 220 mm max sensing distance (4 mm min) means it detects objects reliably against a background at that range — the background suppression cuts false triggers from reflective surfaces behind the target. The push-pull output (100 mA load) works with both sinking and sourcing PLC inputs, so it drops into most control circuits without a conversion interface. Response time is 500 µs, fast enough for counting on moderate-speed conveyors or detecting parts at typical packaging-line rates. The visible red PinPoint LED makes alignment visible during commissioning — you see the spot on the target rather than guessing. IP66 and IP67 mean the sensor body handles washdown and temporary submersion. In a food-and-beverage plant or outdoor conveyor, that keeps it running through hose-down cleaning cycles without potting or extra shrouding. Width is 16 mm, height 40.1 mm, length 12.1 mm. The M8 3-pin connector mates to standard M8 cordsets. Operating voltage range is 10-30 VDC. Temperature range is -40 to +60 °C.","metaTitle":"SICK WTB4FP-31311120 Photoelectric Sensor, 220 mm, Push-Pull","metaDescription":"SICK WTB4FP-31311120 W4F photoelectric proximity sensor with background suppression. 220 mm range, push-pull output, IP66/IP67. Active production. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Photoelectric Sensors"],"specifications":{"Width":"16 mm","Height":"40.1 mm","Length":"12.1 mm","Series":"W4F","Light Type":"PinPoint LED, Visible Red Light","Sensor Type":"Photoelectric Proximity Sensor, Background Suppression","Load Current":"100 mA","Response Time":"500 us","Switching Type":"Light / Dark ON","lifecycle_stage":"current","Termination Type":"Connector, M8, 3-Pin","Protection Rating":"IP66;IP67","Sensing Distance Max.":"220 mm","Sensing Distance Min.":"4 mm","Operating Voltage Max.":"30 V","Operating Voltage Min.":"10 V","Operating Temperature Max.":"60 °C","Operating Temperature Min.":"-40 °C","Optical Sensor Output Type":"Push-Pull"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$198.01 – $206.47","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/510502653159bf10707fa9c8fece196e.pdf","sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/WTB4FP-31311120/alternatives.json"},"ai":{"faq":[{"question":"What is the sensing range of WTB4FP-31311120?","answer":"The sensing distance is 4 mm minimum to 220 mm maximum, with background suppression that rejects objects beyond that range."},{"question":"What output type does this sensor have?","answer":"Push-pull output rated for 100 mA load, configurable for light-on or dark-on switching. It works with both sinking and sourcing PLC inputs."},{"question":"Will WTB4FP-31311120 drop into a panel specified around WTB16P-24161120A00Z?","answer":"No — the WTB4FP-31311120 is a W4F series sensor (16 mm wide, M8 connector), while the WTB16P-24161120A00Z is a W16 series (20 mm wide, M12 connector). Different mounting footprint and connector; rewiring and a bracket change are required."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/sick/WTB4FP-31311120","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/WTB4FP-31311120 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}}