{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3SF7844-8BD24-1SS1","brand":"Siemens","brandSlug":"siemens","productSlug":"3SF7844-8BD24-1SS1","canonicalUrl":"https://aoctrl.com/siemens/3SF7844-8BD24-1SS1","factsUrl":"https://aoctrl.com/api/mcp/products/3SF7844-8BD24-1SS1","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIMATIC FS420I Type 4 safety light curtain host receiver, 30 mm resolution, 1650 mm protected height, blanking, 0 to 18 m range, PROFIsafe bus connection, order code 3SF7844-8BD24-1SS1.","salesMarkdown":"The Siemens 3SF7844-8BD24-1SS1 is a Type 4 safety light curtain host receiver from the SIMATIC FS420I family, specified for point-of-operation guarding where a 30 mm resolution catches fingers reaching into the hazard zone (finger-protection class per IEC 61496-1/2). The 1650 mm protected height and 0 to 18 m range cover large access openings on automated assembly or packaging lines. Blanking capability allows fixed or floating objects within the field to pass without tripping the safety output — useful for workpieces or fixtures that must remain in the beam path during normal operation. PROFIsafe bus connection integrates directly into a SIMATIC safety CPU over the standard PROFIBUS or PROFINET cable plant, eliminating a separate safety relay or hardwired OSSD pair. The host receiver pairs with a corresponding transmitter (same resolution and height) to form the light curtain pair; the bus interface handles the safety data telegram (PROFIsafe profile) and diagnostic feedback to the controller.","metaTitle":"Siemens 3SF7844-8BD24-1SS1 Type 4 Safety Light Curtain, 30 m","metaDescription":"Siemens 3SF7844-8BD24-1SS1 Type 4 host receiver safety light curtain. 30 mm resolution, 1650 mm height, 0-18 m range, blanking, PROFIsafe. Current lifecycle stage. Available to ord","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/3SF7844-8BD24-1SS1/alternatives.json"},"ai":{"faq":[{"question":"What is the 3SF7844-8BD24-1SS1 used for?","answer":"It is a Type 4 safety light curtain host receiver used for finger-protection guarding (30 mm resolution) on access openings up to 1650 mm high and 18 m wide, with PROFIsafe bus communication to a SIMATIC safety controller."},{"question":"Where can I buy the 3SF7844-8BD24-1SS1?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution channels. 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/3SF7844-8BD24-1SS1","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/3SF7844-8BD24-1SS1 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}}