{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"WLD4FP-841121A0ZZZZ2","brand":"SICK","brandSlug":"sick","productSlug":"WLD4FP-841121A0ZZZZ2","canonicalUrl":"https://aoctrl.com/sick/WLD4FP-841121A0ZZZZ2","factsUrl":"https://aoctrl.com/api/mcp/products/WLD4FP-841121A0ZZZZ2","rawCanonicalId":null},"summary":{"shortDescription":"SICK W4F series, WLD4FP-841121A0ZZZZ2, Photoelectric Retro-Reflective Sensor, PinPoint LED Visible Red Light, 4.5 m sensing distance, Push-Pull output, M12 4-pin connector, IP66/IP67/IP69.","salesMarkdown":"## Integrator note — WLD4FP-841121A0ZZZZ2 The SICK WLD4FP-841121A0ZZZZ2 is a W4F-series retro-reflective photoelectric sensor with a 4.5 m sensing range using a PinPoint visible red LED. It switches at 500 µs with a push-pull output configurable for light or dark operation, powered from 10–30 VDC and rated to 100 mA load current. The 16 mm wide housing and M12 4-pin connector make it a direct fit for tight DIN-rail or bracket-mount panels where space is at a premium. The IP66/IP67/IP69 rating means it survives washdown at high pressure and temperature — suitable for food-and-bev lines or outdoor conveyor stations where hose-down is the cleaning standard. The 4.5 m retro-reflective range covers most pallet and tote detection on a conveyor — you need a reflector mounted opposite. The 500 µs response handles fast-moving product at typical line speeds without missing targets. Push-pull output (PNP/NPN compatible) simplifies wiring to most PLC input cards; no pull-up resistor needed. The 10–30 VDC supply range means it works on standard 24 V control power with headroom for brownout conditions. The -40 to 60 °C operating range covers freezer-to-oven environments; no derating needed for cold storage or hot washdown zones.","metaTitle":"WLD4FP-841121A0ZZZZ2 Retro-Reflective Sensor, 4.5 m, IP69","metaDescription":"SICK WLD4FP-841121A0ZZZZ2 photoelectric retro-reflective sensor, 4.5 m range, push-pull output, M12 connector, IP66/IP67/IP69, current lifecycle. 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 Retro-Reflective Sensor","Load Current":"100 mA","Response Time":"500 us","Switching Type":"Light / Dark ON","lifecycle_stage":"current","Termination Type":"Connector, M12, 4-Pin","Protection Rating":"IP66;IP67;IP69","Sensing Distance Max.":"4.5 m","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":"$140.29 – $146.32","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/eb1f0491dabad10e0c649217163e27ad.pdf","sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/WLD4FP-841121A0ZZZZ2/alternatives.json"},"ai":{"faq":[{"question":"Who supplies WLD4FP-841121A0ZZZZ2 and how is it quoted?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at the time of quote."},{"question":"Will WLD4FP-841121A0ZZZZ2 drop into a panel specified around WTB4FP-31311120?","answer":"No — the WTB4FP-31311120 uses an M8 3-pin connector while this part uses an M12 4-pin, so the cable and possibly the wiring scheme differ. The mounting footprint (16 mm width) is the same, but the connector change means you cannot swap without rewiring."},{"question":"What compliance documentation does SICK provide for WLD4FP-841121A0ZZZZ2?","answer":"Standard SICK documentation for this series includes a datasheet and operating instructions. Specific compliance declarations (RoHS, REACH, UL, IEC) are typically available from SICK's documentation portal or upon request from the distributor at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/sick/WLD4FP-841121A0ZZZZ2","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/WLD4FP-841121A0ZZZZ2 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}}