{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT5975-5AF31","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT5975-5AF31","canonicalUrl":"https://aoctrl.com/siemens/3RT5975-5AF31","factsUrl":"https://aoctrl.com/api/mcp/products/3RT5975-5AF31","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS magnet coil, 127 V AC/DC, for size S12 contactor, 3RT5975-5AF31.","salesMarkdown":"The Siemens 3RT5975-5AF31 is a SIRIUS magnet coil for size S12 contactors. The coil accepts both AC and DC control supply voltage at a rated value of 127 V for 50 Hz, 60 Hz, and DC operation. That 127 V DC rating is worth flagging: if your control bus is 125 VDC nominal, this coil holds right at its rated value — no margin concern. The AC/DC capability simplifies stocking; one coil covers both supply types at the same voltage level. ## Integration note — panel fit The coil mounts directly into the S12 contactor frame. Verify the control voltage before energizing — 127 V AC/DC.","metaTitle":"Siemens 3RT5975-5AF31 SIRIUS Magnet Coil, 127 V AC/DC, Size","metaDescription":"Siemens 3RT5975-5AF31 SIRIUS magnet coil for size S12 contactors. 127 V AC/DC control supply voltage. Current 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":"127 V","Product Designation":"Magnet coil","at 50 Hz rated value":"127 V","at 60 Hz rated value":"127 V","Type Of Voltage Of The Control Supply Voltage":"AC/DC"}},"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=580123&mlfb=3RT5975-5AF31","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT5975-5AF31/alternatives.json"},"ai":{"faq":[{"question":"What contactor size does this coil fit?","answer":"It is a magnet coil for size S12 contactors in the SIRIUS family."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT5975-5AF31","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/3RT5975-5AF31 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}}