{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3SF7844-8BB24-0SS1","brand":"Siemens","brandSlug":"siemens","productSlug":"3SF7844-8BB24-0SS1","canonicalUrl":"https://aoctrl.com/siemens/3SF7844-8BB24-0SS1","factsUrl":"https://aoctrl.com/api/mcp/products/3SF7844-8BB24-0SS1","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIMATIC FS420I Type 4 safety light curtain receiver, 14 mm resolution, 1650 mm protected height, blanking, 0 to 6 m range, PROFIsafe bus connection, order code 3SF7844-8BB24-0SS1.","salesMarkdown":"The 3SF7844-8BB24-0SS1: 14 mm resolution is finger-protection class per IEC 61496-1 — it detects objects as small as 14 mm diameter, so it stops the machine before a finger or tool reaches the pinch point. The 1650 mm protected height covers a typical standing operator's reach zone; pair it with a matching transmitter of the same height and resolution. Blanking (fixed or floating) lets you bypass selected beams for workpiece pass-through without disabling the safety function — useful when a fixture or part must break the curtain during the cycle. The 0 to 6 m range is the standard span; verify your installation distance falls within it. PROFIsafe bus connection means it talks directly to a F-CPU (fail-safe controller) over PROFINET with PROFIsafe profile, eliminating a separate safety relay or evaluation unit — one cable for both safety and diagnostics.","metaTitle":"Siemens 3SF7844-8BB24-0SS1 Safety Light Curtain Receiver, 14","metaDescription":"Siemens 3SF7844-8BB24-0SS1 Type 4 safety light curtain receiver, 14 mm resolution, 1650 mm height, blanking, 0-6 m range, PROFIsafe. Current lifecycle. Quoted to order.","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/3SF7844-8BB24-0SS1/alternatives.json"},"ai":{"faq":[{"question":"What is the 3SF7844-8BB24-0SS1 used for?","answer":"It is a Type 4 safety light curtain receiver used for finger-protection guarding (14 mm resolution) in machine safety applications, with a 1650 mm protected height and PROFIsafe bus connection for direct integration with a fail-safe controller."},{"question":"Where can I buy 3SF7844-8BB24-0SS1 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 quote time."},{"question":"What is the closest alternative to 3SF7844-8BB24-0SS1 in the same family?","answer":"The closest peer is the matching transmitter for this receiver, which shares the same 14 mm resolution, 1650 mm height, and PROFIsafe interface. The receiver itself has no pin-compatible alternative outside the FS420I family — the PROFIsafe bus connection and Type 4 rating are specific to this design."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3SF7844-8BB24-0SS1","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/3SF7844-8BB24-0SS1 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}}