{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3SF7844-8MB26-0SS1","brand":"Siemens","brandSlug":"siemens","productSlug":"3SF7844-8MB26-0SS1","canonicalUrl":"https://aoctrl.com/siemens/3SF7844-8MB26-0SS1","factsUrl":"https://aoctrl.com/api/mcp/products/3SF7844-8MB26-0SS1","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIMATIC FS450I Type 4 safety light curtain receiver, 14 mm resolution, 1800 mm height, muting, PROFIsafe bus connection, order code 3SF7844-8MB26-0SS1.","salesMarkdown":"The Siemens 3SF7844-8MB26-0SS1 is a Type 4 safety light curtain receiver from the SIMATIC FS450I series, with a 14 mm resolution and 1800 mm protective height. It connects via PROFIsafe bus and includes muting capability for material handling pass-through. The 14 mm finger-protection resolution means it catches hands or fingers reaching into the hazard zone — that's finger-protection class per IEC 61496-1, not just hand detection. The 1800 mm height covers a full standing access area, so it suits large machine guarding or robotic cell perimeters. The muting function lets pallets or workpieces pass through without tripping the safety output, which keeps production moving on conveyor lines. The 14 mm resolution is the key selection parameter: it determines the smallest object the curtain detects. At 14 mm, it catches individual fingers (finger protection), which is required for applications where operators can reach past the light curtain into the danger zone. The 1800 mm height covers the full vertical opening of a typical machine guard. The PROFIsafe bus connection integrates directly into a Siemens safety CPU (like an F-CPU or ET 200SP F) without a separate safety relay — the safety signal travels over the same PROFIBUS or PROFINET cable as standard I/O, which saves cabinet space and wiring. The muting function uses external sensors to temporarily bypass the curtain when a workpiece or pallet passes through, then re-enables it — essential for automated material handling where you cannot stop the line for every part. ## Deployment context This light curtain is built for guarding hazard zones on automated machinery — press brakes, robotic cells, packaging lines, assembly stations. The Type 4 classification (per IEC 61496-1) means it meets the highest safety integrity level for electro-sensitive protective equipment, suitable for applications up to SIL 3 / PL e. The PROFIsafe interface eliminates the need for a separate safety relay module, which simplifies the safety circuit and reduces wiring. The muting capability makes it a fit for conveyor pass-through points where parts must enter and exit the guarded area without stopping the line.","metaTitle":"Siemens 3SF7844-8MB26-0SS1 Safety Light Curtain, Type 4, 14m","metaDescription":"Siemens 3SF7844-8MB26-0SS1 Type 4 safety light curtain receiver, 14mm resolution, 1800mm height, muting, PROFIsafe. Current lifecycle. Available to order. Request RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Safety Interlock Switches"],"specifications":{"lifecycle_stage":"current"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/3SF7844-8MB26-0SS1/alternatives.json"},"ai":{"faq":[{"question":"What is the 14 mm resolution on the 3SF7844-8MB26-0SS1 used for?","answer":"The 14 mm resolution means the light curtain detects objects as small as 14 mm — typically fingers — which qualifies it as finger-protection class per IEC 61496-1, required where operators can reach into the guarded area."},{"question":"How do I get pricing and availability for 3SF7844-8MB26-0SS1?","answer":"Pricing and availability are confirmed at quote time against an RFQ through independent distribution. Submit an RFQ with your target quantity and delivery window for a current quote."},{"question":"What does the muting function on this light curtain do?","answer":"The muting function allows a workpiece or pallet to pass through the light curtain without triggering a safety stop, using external muting sensors to temporarily bypass the curtain during the pass-through cycle."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3SF7844-8MB26-0SS1","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/siemens/3SF7844-8MB26-0SS1 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}}