{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT5975-5AB31","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT5975-5AB31","canonicalUrl":"https://aoctrl.com/siemens/3RT5975-5AB31","factsUrl":"https://aoctrl.com/api/mcp/products/3RT5975-5AB31","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS magnet coil, 3RT5975-5AB31, 26 V AC/DC, for size S12 contactors, active lifecycle.","salesMarkdown":"The Siemens SIRIUS 3RT5975-5AB31 is a replacement magnet coil for size S12 contactors in the SIRIUS family. This means the same coil can be wired into a panel running either an AC control transformer or a DC supply bus without swapping parts. This coil is sized for the S12 contactor frame — the same physical footprint as the 3RT10 and 3RT20 SIRIUS contactors in that size class. When replacing a failed coil on an existing S12 contactor, verify the control voltage matches the 26 V AC/DC rating before energizing. The AC/DC designation means the coil's suppression circuitry handles both waveforms, but polarity matters on the DC side: observe the marking on the coil terminals.","metaTitle":"3RT5975-5AB31 SIRIUS Magnet Coil, 26 V AC/DC, Size S12","metaDescription":"Siemens SIRIUS 3RT5975-5AB31 magnet coil for size S12 contactors. Rated 26 V AC/DC control supply. Active lifecycle stage. 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","2 at DC rated value":"26 V","Product Designation":"Magnet coil","at 50 Hz rated value":"26 V","at 60 Hz rated value":"26 V","Type Of Voltage Of The Control Supply Voltage":"AC/DC"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/86d31c73ad5f430a7b5369d9f2bcefa2.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=580121&mlfb=3RT5975-5AB31","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT5975-5AB31/alternatives.json"},"ai":{"faq":[{"question":"What is the control supply voltage for this coil?","answer":"The coil is rated for 26 V AC at 50 Hz, 26 V AC at 60 Hz, and 26 V DC. The type of voltage is AC/DC, so it accepts either supply type without modification."},{"question":"What contactor frame size does this coil fit?","answer":"It is designed for the SIRIUS size S12 contactor frame. This is the same frame used by the 3RT10 and 3RT20 series contactors in that size class."},{"question":"What brand and series is this coil part of?","answer":"It is a Siemens SIRIUS product, designated as a magnet coil for the SIRIUS contactor family."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT5975-5AB31","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/3RT5975-5AB31 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}}