{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH1911-2FA01","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH1911-2FA01","canonicalUrl":"https://aoctrl.com/siemens/3RH1911-2FA01","factsUrl":"https://aoctrl.com/api/mcp/products/3RH1911-2FA01","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RH1 auxiliary switch block, 3RH1911-2FA01, 1 NC contact, spring-type terminal, size S00, for contactor relays and motor contactors.","salesMarkdown":"The Siemens 3RH1911-2FA01 is an auxiliary switch block with one normally-closed contact, using spring-type terminals and sized for the S00 frame. It mounts directly onto SIRIUS contactors and contactor relays. This part is a phased-out product with lifecycle stage listed as current. The successor is the SIRIUS 3RH2 series. The spring-type terminal (EN 50005) accepts solid or ferruled stranded wire without screw-clamp torque — handy when you're packing multiple blocks into a tight panel and can't reach every terminal with a screwdriver. The 1 NC contact gives you one normally-closed path; if your circuit needs more than one, you stack additional blocks. The S00 size matches the smallest SIRIUS contactor frame, so it won't overhang the contactor body — keeps the DIN-rail layout clean.","metaTitle":"Siemens 3RH1911-2FA01 Auxiliary Switch Block, 1 NC, Spring T","metaDescription":"Siemens 3RH1911-2FA01 auxiliary switch block, 1 NC contact, spring-type terminals, size S00. Phased-out product, successor is SIRIUS 3RH2. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"lifecycle_stage":"current"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=88659&mlfb=3RH1911-2FA01","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH1911-2FA01/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to 3RH1911-2FA01 in this component family?","answer":"The official successor is the SIRIUS 3RH2 series. The 3RH1911-2FA01 itself is an auxiliary switch block for the S00 frame — the 3RH2 blocks are the direct replacement, but verify terminal type and contact configuration against your application."},{"question":"What is 3RH1911-2FA01's listed description?","answer":"The description is: Auxiliary switch block, 22, 1 NC, EN 50005 spring-type terminal size S00, for contactor relays and motor contactors. It is a phased-out product with the successor being SIRIUS 3RH2."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH1911-2FA01","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/3RH1911-2FA01 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}}