{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1924-5AD22","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1924-5AD22","canonicalUrl":"https://aoctrl.com/siemens/3RT1924-5AD22","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1924-5AD22","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS, Magnet coil, 3RT1924-5AD22, 42 V AC, 50/60 Hz, spring-type terminals, Size S0.","salesMarkdown":"The Siemens SIRIUS 3RT1924-5AD22 is a magnet coil for Size S0 contactors, rated 42 V AC at both 50 Hz and 60 Hz. It uses spring-type terminals for the control circuit connection. This is a phased-out product; the official successor is the SIRIUS 3RT2 series. ## What the 42 V AC coil rating means for fit The 42 V AC control supply voltage is common in industrial control panels where a lower control voltage is specified for safety or compatibility with existing transformer taps. The coil draws power across the 50/60 Hz range without a separate tap change, simplifying panel wiring. The operating range of 0.8...1.1 at 50 Hz indicates the coil's pickup and hold voltage tolerance relative to its rated voltage — it must see at least 80% of 42 V (about 33.6 V) to reliably pull in, and can tolerate up to 110% (about 46.2 V) without overheating. ## Panel integration","metaTitle":"Siemens 3RT1924-5AD22 SIRIUS Magnet Coil, 42 V AC, 50/60 Hz","metaDescription":"Siemens SIRIUS 3RT1924-5AD22 magnet coil for Size S0 contactors. 42 V AC, 50/60 Hz, spring-type terminals. Phased-out product; successor is SIRIUS 3RT2. Sourced to order against RF","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":"42 V","at 60 Hz rated value":"42 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=328923&mlfb=3RT1924-5AD22","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1924-5AD22/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RT1924-5AD22 and how do I get a price?","answer":"This part is sourced to order against an RFQ through independent distribution. Submit an RFQ for current availability and pricing — figures are confirmed at quote time and are not listed here."},{"question":"What is the closest functional second-source for 3RT1924-5AD22?","answer":"The official successor is the SIRIUS 3RT2 series. A peer with the same 42 V AC coil voltage and Size S0 frame is the 3RT1017-1AD02, but that is a power contactor, not a bare coil. Verify the contactor frame size and terminal type before substituting."},{"question":"What is the at 50 Hz rating for 3RT1924-5AD22?","answer":"The operating range at 50 Hz is 0.8... 1.1, indicating the coil's pickup and hold voltage tolerance relative to its 42 V rated voltage."},{"question":"Will 3RT1924-5AD22 drop into a panel specified around 3RT1017-1AD02 without rewiring?","answer":"Both parts share the SIRIUS Size S0 frame and 42 V AC coil voltage, but 3RT1017-1AD02 is a complete power contactor with screw terminals, while 3RT1924-5AD22 is a bare magnet coil with spring-type terminals. The coil will physically fit the contactor frame, but verify the terminal type matches your wiring method."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1924-5AD22","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/3RT1924-5AD22 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}}