{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1934-5AD01","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1934-5AD01","canonicalUrl":"https://aoctrl.com/siemens/3RT1934-5AD01","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1934-5AD01","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS, magnet coil for size S2 contactors, 42 V AC 50 Hz, screw terminal, phased-out product.","salesMarkdown":"The Siemens 3RT1934-5AD01 is a SIRIUS magnet coil designed for size S2 contactors, with a 42 V AC control supply at 50 Hz and screw-type terminals. This is a phased-out product; the official successor is the SIRIUS 3RT2 series. The coil operates at 42 V AC, 50 Hz, with an operating range of 0.8 to 1.1 times the rated voltage — meaning it picks up reliably between about 33.6 V and 46.2 V. That tolerance matters when the control transformer is loaded or the line sags; if your panel's control voltage sits at 48 V or above, this coil may not drop out cleanly. The screw terminal matches the size S2 contactor footprint — no adapter needed, but verify the existing coil's voltage and frequency before swapping.","metaTitle":"Siemens 3RT1934-5AD01 SIRIUS Magnet Coil, 42 V AC, 50 Hz","metaDescription":"Siemens SIRIUS 3RT1934-5AD01 magnet coil for size S2 contactors, 42 V AC 50 Hz, screw terminal. Phased-out — successor is SIRIUS 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":"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=120430&mlfb=3RT1934-5AD01","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1934-5AD01/alternatives.json"},"ai":{"faq":[{"question":"What replaces 3RT1934-5AD01?","answer":"The SIRIUS 3RT2 series is the manufacturer's stated successor. It is a different platform, so verify mechanical and electrical compatibility before substitution."},{"question":"Where can I buy 3RT1934-5AD01?","answer":"This part is sourced to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What is the operating voltage range for 3RT1934-5AD01?","answer":"The coil operates at 42 V AC, 50 Hz, with a tolerance of 0.8 to 1.1 times the rated voltage — roughly 33.6 V to 46.2 V."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1934-5AD01","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/3RT1934-5AD01 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}}