{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1945-5AV61","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1945-5AV61","canonicalUrl":"https://aoctrl.com/siemens/3RT1945-5AV61","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1945-5AV61","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS, Magnet coil, 3RT1945-5AV61, 480 V AC 60 Hz, screw terminal, Size S3.","salesMarkdown":"It is the replacement coil for legacy 3RT1 contactor frames — if you have a 3RT1 Size S3 contactor in a panel and the coil fails, this is the direct spare. The 480 V AC 60 Hz coil voltage is the control voltage that picks up and holds the contactor. If your panel supplies 480 V AC at 60 Hz to the coil circuit, this coil matches. The screw terminal connection is standard for Size S3 contactor bases — no special tooling needed. Mounts directly onto the contactor's magnet system; no adapter required.","metaTitle":"Siemens 3RT1945-5AV61 SIRIUS Magnet Coil, 480 V AC 60 Hz, Sc","metaDescription":"Siemens 3RT1945-5AV61 SIRIUS magnet coil for Size S3 contactors, 480 V AC 60 Hz, screw terminal. Lifecycle stage current. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"lifecycle_stage":"current","Product Brand Name":"SIRIUS","Product Designation":"Magnet coil"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$323.84","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=51756&mlfb=3RT1945-5AV61","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1945-5AV61/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RT1945-5AV61 and get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time. Submit an RFQ for a firm price and lead time."},{"question":"What is the successor to 3RT1945-5AV61?","answer":"The official successor is the SIRIUS 3RT2 series magnet coil. The 3RT1945-5AV61 remains current for spares but is not recommended for new installations."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1945-5AV61","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/3RT1945-5AV61 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}}