{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3SF7844-8BD15-0SS1","brand":"Siemens","brandSlug":"siemens","productSlug":"3SF7844-8BD15-0SS1","canonicalUrl":"https://aoctrl.com/siemens/3SF7844-8BD15-0SS1","factsUrl":"https://aoctrl.com/api/mcp/products/3SF7844-8BD15-0SS1","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIMATIC FS420I Type 4 safety light curtain receiver, 30 mm resolution, 1050 mm protected height, 0 to 18 m range, blanking, PROFIsafe bus connection, order code 3SF7844-8BD15-0SS1.","salesMarkdown":"The Siemens 3SF7844-8BD15-0SS1 is a Type 4 safety light curtain receiver from the SIMATIC FS420I family, specified for applications requiring a 30 mm resolution over a 1050 mm protected height and an operating range of 0 to 18 m. It supports blanking and connects via PROFIsafe bus. The 30 mm resolution on this receiver provides finger detection (hand protection) per IEC 61496-2, suitable for guarding hazard zones where operators reach toward the danger area. The 1050 mm height covers a typical waist-to-shoulder zone on a standing operator. As a receiver with PROFIsafe bus connection, it integrates directly into a SIMATIC safety CPU or F-capable controller over the PROFIsafe protocol, eliminating the need for a separate safety relay module. The blanking function allows fixed or floating blanking to ignore stationary objects (e.g., fixture posts) within the field.","metaTitle":"Siemens 3SF7844-8BD15-0SS1 Type 4 Safety Light Curtain Recei","metaDescription":"Siemens 3SF7844-8BD15-0SS1 Type 4 safety light curtain receiver, 30 mm resolution, 1050 mm height, 0 to 18 m range, PROFIsafe bus. Current lifecycle stage. Available 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/3SF7844-8BD15-0SS1/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3SF7844-8BD15-0SS1 and get a price?","answer":"The 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 resolution and range of this light curtain receiver?","answer":"The receiver has a 30 mm resolution, a 1050 mm protected height, and an operating range of 0 to 18 m."},{"question":"What does the Type 4 safety rating mean?","answer":"Type 4 per IEC 61496-1/2 means the light curtain provides the highest level of safety integrity for electro-sensitive protective equipment, suitable for applications up to SIL 3 or PL e."},{"question":"Does this receiver support blanking?","answer":"Yes, the receiver supports blanking, allowing stationary objects within the field to be ignored while maintaining protection."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3SF7844-8BD15-0SS1","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/3SF7844-8BD15-0SS1 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}}