{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RK1911-1AJ22","brand":"Siemens","brandSlug":"siemens","productSlug":"3RK1911-1AJ22","canonicalUrl":"https://aoctrl.com/siemens/3RK1911-1AJ22","factsUrl":"https://aoctrl.com/api/mcp/products/3RK1911-1AJ22","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS ECOFAST 3RK1911-1AJ22 hybrid field connection PROFIBUS CU/CU signal refresher, IP65, automatic baud rate search, socket/socket.","salesMarkdown":"The Siemens 3RK1911-1AJ22 is an ECOFAST hybrid field connection PROFIBUS CU/CU signal refresher. It sits between two PROFIBUS segments, regenerating the signal so you can extend the bus length or add more nodes without losing communication integrity. The unit has an IP65-rated housing with a front-side CU socket/socket interface and an internal D-SUB 9-pole socket for the active signal refresher electronics. It handles automatic baud rate search, so it adapts to whatever PROFIBUS speed the network is running — no DIP switch setting needed. This is a field-mounted PROFIBUS repeater in an IP65 enclosure — it lives out on the machine or conveyor line, not inside a control cabinet. The CU socket/socket connection means you plug in standard ECOFAST hybrid cables (power and bus in one jacket) on both sides. The internal D-SUB 9-pole socket gives you a local programming or diagnostic access point. Because it's IP65, it handles washdown and dust exposure common in automotive body shops, packaging lines, and material-handling zones.","metaTitle":"Siemens 3RK1911-1AJ22 ECOFAST PROFIBUS Signal Refresher, IP6","metaDescription":"Siemens 3RK1911-1AJ22 ECOFAST hybrid field connection PROFIBUS CU/CU signal refresher. IP65, automatic baud rate search. Current lifecycle stage. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Remote I/O & Fieldbus Modules"],"specifications":{"lifecycle_stage":"current","Substance Prohibitance (Date)":"07/01/2006"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$457.20","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=351045&mlfb=3RK1911-1AJ22","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RK1911-1AJ22/alternatives.json"},"ai":{"faq":[{"question":"What is the substance prohibitance date and what does it mean?","answer":"The substance prohibitance date is 07/01/2006, which marks the original RoHS compliance deadline. This part has been RoHS-compliant since that date."},{"question":"What is the closest functional second-source for this part?","answer":"There is no direct second-source for the 3RK1911-1AJ22. The peer contactors listed (3RT2016-1DF47, 3RT2045-3KB44-3MA0, 3RT6023-1BW40) are SIRIUS power contactors — a completely different product class. They do not perform PROFIBUS signal regeneration and cannot substitute this part. Stick with the Siemens order code for this function."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RK1911-1AJ22","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/3RK1911-1AJ22 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}}