{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1934-5AU61","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1934-5AU61","canonicalUrl":"https://aoctrl.com/siemens/3RT1934-5AU61","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1934-5AU61","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS S2 AC coil, 277V 60Hz, screw connection, order code 3RT1934-5AU61.","salesMarkdown":"The Siemens 3RT1934-5AU61 is an AC coil for the SIRIUS S2 contactor family, wound for 277 V at 60 Hz with screw terminals. It's the pull-in coil that makes the contactor pick up — no coil, no switching. The S2 frame size mates with SIRIUS 3RT2 contactors in the same mechanical envelope, so it swaps straight in on a panel rebuild or a coil failure. The 277 V 60 Hz coil voltage is the standard North American control-voltage tap for a 480Y/277 V distribution system — common in industrial plants running 60 Hz. If your panel is 50 Hz or a different control voltage (120 V, 24 VDC), this coil won't pick up reliably. The S2 physical size matches the SIRIUS 3RT2 contactor range, so it bolts onto the contactor's magnet system without adapters. Screw terminals mean standard ring or fork lugs; no special crimp tool needed.","metaTitle":"Siemens 3RT1934-5AU61 SIRIUS S2 AC Coil, 277V 60Hz","metaDescription":"Siemens 3RT1934-5AU61 SIRIUS S2 AC coil for contactors. Rated 277V 60Hz, screw connection. Current lifecycle stage: active. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"lifecycle_stage":"current"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1934-5AU61/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy the 3RT1934-5AU61?","answer":"It's sourced and quoted to order against an RFQ through independent distribution, with availability and current pricing confirmed at quote time."},{"question":"What contactor does the 3RT1934-5AU61 fit?","answer":"It's the AC coil for the Siemens SIRIUS S2 contactor family, size S2, mating with 3RT2 contactors in the same frame."},{"question":"What voltage is the 3RT1934-5AU61 coil rated for?","answer":"Rated 277 V at 60 Hz, screw connection — standard for North American 480Y/277 V control circuits."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1934-5AU61","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/3RT1934-5AU61 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}}