{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1945-6A","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1945-6A","canonicalUrl":"https://aoctrl.com/siemens/3RT1945-6A","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1945-6A","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS, replacement contact pieces, frame size S3, 3-pole, AC-3 37 kW, 3 NO main contacts, 3RT1945-6A.","salesMarkdown":"The Siemens 3RT1945-6A is a replacement contact-piece kit for a 3-pole contactor in frame size S3, rated AC-3 at 37 kW. It includes three movable and six fixed main contacts plus mounting hardware. This is a phased-out product; the official successor contactor family is the SIRIUS 3RT2.","metaTitle":"Siemens 3RT1945-6A replacement contact pieces, S3 frame, AC-","metaDescription":"Siemens 3RT1945-6A replacement contact pieces for S3 contactor, AC-3 37 kW, 3 NO main contacts. Phased-out product; successor is SIRIUS 3RT2. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"lifecycle_stage":"current","Datum: 22.01.2021":"Änderungen vorbehalten © Copyright Siemens 2021"}},"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=287976&mlfb=3RT1945-6A","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1945-6A/alternatives.json"},"ai":{"faq":[{"question":"What replaces the 3RT1945-6A?","answer":"The official successor contactor family is the SIRIUS 3RT2. However, the 3RT2 uses different contact-piece part numbers, so there is no direct drop-in replacement for this exact kit. The 3RT1945-6A is sourced as a new-old-stock or surplus item."},{"question":"How do I source the 3RT1945-6A?","answer":"This part is sourced to order against an RFQ through surplus and broker channels. No stock or lead-time figures are available; submit an RFQ for a sourcing quote."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1945-6A","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/3RT1945-6A 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}}