{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SME-3-SL-LED-24-B","brand":"Festo","brandSlug":"festo","productSlug":"SME-3-SL-LED-24-B","canonicalUrl":"https://aoctrl.com/festo/SME-3-SL-LED-24-B","factsUrl":"https://aoctrl.com/api/mcp/products/SME-3-SL-LED-24-B","rawCanonicalId":null},"summary":{"shortDescription":"Festo SME-3-SL-LED-24-B Electrical Reed Switch, M8 3-pin Connector, IP66, 12-24 V AC/DC, 500 mA, 800 Hz.","salesMarkdown":"The Festo SME-3-SL-LED-24-B is an electrical reed switch, the kind you clamp into a T-slot on a pneumatic cylinder to tell the controller where the piston is. It switches at 800 Hz with a 0.5 ms response time, which is fast enough for high-cycle pick-and-place or sorting stations where you need clean position feedback without missing a stroke. Runs on 12 to 24 V AC/DC and handles up to 500 mA with a 10 W switching capacity. IP66 means it stands up to washdown environments and dust — think food processing lines or outdoor conveyor sections where a lower-rated sensor would let moisture in and fail intermittently. The M8 3-pin connector makes for a quick swap when it does eventually wear out, which is the point: reed switches are mechanical, they have a finite life, and this one is built to be replaced without pulling cable. ## Integration Note Body dimensions are 18 x 19 x 13 mm, which is compact enough to fit into tight T-slot profiles on smaller cylinders. The -SL- in the code indicates the slot-style mounting — it clamps in, not bolts on, so you can adjust position along the slot without tools. That covers most indoor plant floors but if your application sees sustained heat above 60 °C you'll need to move the sensor outside the hot zone or use a different sensing principle.","metaTitle":"Festo SME-3-SL-LED-24-B Electrical Reed Switch, IP66, M8 3-p","metaDescription":"Festo SME-3-SL-LED-24-B electrical reed switch. IP66 rated, M8 3-pin connector, 12-24 V AC/DC, 500 mA, 800 Hz switching. Current lifecycle stage. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Proximity Sensors"],"specifications":{"Type":"ELECTRICAL REED SWITCH","Model":"SME-3-SL-LED-24-B","Condition":"New / Used","Manufacturer":"FESTO","Connector type":"M8 Connector, 3-pin","Switching time":"0.5 ms","lifecycle_stage":"current","Enclosure rating":"IP66","Operating Current":"500 mA","Operating Voltage":"12 … 24 V AC/DC","Switching Capacity":"10 W","Switching frequency":"800 Hz","Diameter, housing length":"18 x 19 x 13 mm","Ambient Operating temperature":"-20 … 60°C"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$346.38","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/SME-3-SL-LED-24-B/alternatives.json"},"ai":{"faq":[{"question":"Will SME-3-SL-LED-24-B drop into a panel that was specified around SME-3-SQ-LED-24B without rewiring?","answer":"Both use an M8 3-pin connector and share the same IP66 rating, switching frequency, and current capacity. The main difference is the housing shape: the -SL- version is 18 x 19 x 13 mm for T-slots, while the -SQ- variant is 18 x 10 x 20 mm. If the slot profile matches, it should fit without rewiring, but check the physical clearance first."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/festo/SME-3-SL-LED-24-B","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/festo/SME-3-SL-LED-24-B 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}}