{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3SF7844-8BD06-1SS1","brand":"Siemens","brandSlug":"siemens","productSlug":"3SF7844-8BD06-1SS1","canonicalUrl":"https://aoctrl.com/siemens/3SF7844-8BD06-1SS1","factsUrl":"https://aoctrl.com/api/mcp/products/3SF7844-8BD06-1SS1","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIMATIC FS420I Type 4 safety light curtain host receiver, 3SF7844-8BD06-1SS1, 30 mm resolution, 450 mm protected height, 0 to 18 m range, PROFIsafe bus connection.","salesMarkdown":"The Siemens 3SF7844-8BD06-1SS1 is a Type 4 safety light curtain host receiver from the SIMATIC FS420I family, rated for finger and hand detection at 30 mm resolution across a 450 mm protected height and a 0 to 18 m operating range. The PROFIsafe bus connection integrates directly into a safety-rated PROFINET network, eliminating the need for a separate safety relay module in the control cabinet. Type 4 per IEC 61496-1/2 is the highest safety integrity for electro-sensitive protective equipment — it can be used for applications up to SIL 3 / PL e without additional guarding. The 30 mm resolution catches fingers reaching into the hazard zone (finger-protection class). The 450 mm protected height and 0–18 m range suit medium-width access points on assembly lines, packaging machines, or robotic cells. PROFIsafe (PROFIsafe bus connection) means the light curtain communicates safety status directly over the standard PROFINET cable, using the black/red RJ45 connector. No hardwired safety relay or dual-channel wiring to a failsafe PLC input is required — the safety function is handled in the PLC's F-host via the GSDML file. This reduces panel wiring and simplifies diagnostics.","metaTitle":"Siemens 3SF7844-8BD06-1SS1 Safety Light Curtain, Type 4, 30","metaDescription":"Siemens 3SF7844-8BD06-1SS1 Type 4 safety light curtain host receiver, 30 mm resolution, 450 mm height, 0–18 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/3SF7844-8BD06-1SS1/alternatives.json"},"ai":{"faq":[{"question":"What does Type 4 mean for this light curtain?","answer":"Type 4 per IEC 61496-1/2 is the highest safety integrity level for electro-sensitive protective equipment, suitable for applications up to SIL 3 / PL e without additional guarding."},{"question":"What is the protected height and range of this light curtain?","answer":"The protected height is 450 mm and the operating range is 0 to 18 m, with a 30 mm resolution for finger detection."},{"question":"Where can I buy 3SF7844-8BD06-1SS1?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3SF7844-8BD06-1SS1","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/3SF7844-8BD06-1SS1 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}}