{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT6924-5AC21","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT6924-5AC21","canonicalUrl":"https://aoctrl.com/siemens/3RT6924-5AC21","factsUrl":"https://aoctrl.com/api/mcp/products/3RT6924-5AC21","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS, Magnet coil, 3RT6924-5AC21, for contactors 7.5 kW, size S0, screw terminal.","salesMarkdown":"The Siemens SIRIUS 3RT6924-5AC21 is a magnet coil designed for motor contactors rated up to 7.5 kW in size S0, with screw terminals for the control circuit connection. This is the replacement coil for the contactor's electromagnet — when the coil fails, the contactor won't pull in, and this is the service part you swap in on the bench or in the panel. ## Fit & Integration Mounts into S0-frame Siemens SIRIUS contactors that accept a separate magnet coil — typically the 3RT2 series contactors in the 7.5 kW class at 400 V AC-3. Screw terminals match the existing control wiring; no crimp or special tool needed for the coil connections.","metaTitle":"Siemens SIRIUS 3RT6924-5AC21 Magnet Coil, Size S0, Screw Ter","metaDescription":"Siemens SIRIUS 3RT6924-5AC21 magnet coil for 7.5 kW motor contactors, size S0, screw terminal. 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","Product Designation":"Magnet coil"}},"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=580344&mlfb=3RT6924-5AC21","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT6924-5AC21/alternatives.json"},"ai":{"faq":[{"question":"What brand is 3RT6924-5AC21?","answer":"It is a Siemens SIRIUS product."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT6924-5AC21","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/3RT6924-5AC21 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}}