{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1944-5AL22","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1944-5AL22","canonicalUrl":"https://aoctrl.com/siemens/3RT1944-5AL22","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1944-5AL22","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT1944-5AL22, magnet coil for Size S3 contactors, 230 V AC 50/60 Hz, spring-loaded connection technology.","salesMarkdown":"The Siemens 3RT1944-5AL22 is a SIRIUS magnet coil designed for Size S3 contactors. ## Sourcing reality — phased out, successor available This coil is a phased-out product per the manufacturer. The official successor is the SIRIUS 3RT2 series, which uses the same Size S3 mechanical platform and spring-loaded connection layout. No last-time-buy window is stated in the record. The spring-loaded terminals reduce wiring time on repetitive builds — strip to 8 mm, insert, and the cage locks. The IP20 front protection means it's suited for enclosed control panels only; no washdown exposure.","metaTitle":"Siemens 3RT1944-5AL22 SIRIUS Magnet Coil, 230 V AC, S3","metaDescription":"Siemens SIRIUS 3RT1944-5AL22 magnet coil for Size S3 contactors. 230 V AC 50/60 Hz, spring-loaded terminals. Phased-out; successor is 3RT2 series. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"at 50 Hz":"0.8 ... 1.1","lifecycle_stage":"current","Product Brand Name":"SIRIUS","Product Designation":"Magnet coil","at 50 Hz rated value":"230 V","at 60 Hz rated value":"230 V","Type Of Voltage Of The Control Supply Voltage":"AC"}},"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=34305&mlfb=3RT1944-5AL22","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1944-5AL22/alternatives.json"},"ai":{"faq":[{"question":"Will the 3RT1944-5AL22 drop into a panel wired for a 3RT1023-1AL20 contactor?","answer":"No — this is a magnet coil, not a contactor. It fits SIRIUS Size S3 contactor frames, while the 3RT1023-1AL20 is a Size S0 power contactor. The mechanical platform and coil mounting are different sizes."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1944-5AL22","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/3RT1944-5AL22 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}}