{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT5934-5BF41","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT5934-5BF41","canonicalUrl":"https://aoctrl.com/siemens/3RT5934-5BF41","factsUrl":"https://aoctrl.com/api/mcp/products/3RT5934-5BF41","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS magnet coil, 110 V DC, size S2, screw connection, order code 3RT5934-5BF41.","salesMarkdown":"The 3RT5934-5BF41: Because the lifecycle stage is current, this coil is not subject to last-time-buy windows or phase-out notices. The coil mounts directly into a SIRIUS size S2 contactor frame — no adapter or bracket needed. The screw connection matches the existing terminal blocks in most panels, so a swap requires only disconnecting the old coil and wiring the new one at the same terminals. ## What the 110 V DC rating means The 110 V DC control voltage is the nominal coil rating. In a DC control circuit, the coil draws a steady current once energized — no inrush peak from an AC coil's inductance swing. This matters for the DC supply sizing: the coil's holding power (not listed here, but typically around 15 W for SIRIUS size S2) determines the continuous load on the 110 V DC bus. Verify that your DC power supply can sustain that draw without droop, especially if multiple coils are energized simultaneously.","metaTitle":"Siemens 3RT5934-5BF41 SIRIUS Magnet Coil, 110 V DC, Size S2","metaDescription":"Siemens SIRIUS 3RT5934-5BF41 magnet coil for contactor, 110 V DC, size S2, screw connection. Lifecycle stage: current. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"title":"3RT5934-5BF41","description":"Magnetic coil for contactor 110 V DC SIRIUS, size S2, Screw connection","lifecycle_stage":"current","Product Brand Name":"SIRIUS","1 at DC rated value":"110 V","Product Designation":"Magnet coil","Type Of Voltage Of The Control Supply Voltage":"DC"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/7d8e4ad44864a287f38d679e9859ae49.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=580338&mlfb=3RT5934-5BF41"},"ai":{"faq":[{"question":"What is the control voltage for 3RT5934-5BF41?","answer":"The coil is rated 110 V DC."},{"question":"Where can I buy 3RT5934-5BF41?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"Does 3RT5934-5BF41 fit a size S2 contactor?","answer":"Yes, it is designed as a replacement magnet coil for SIRIUS size S2 contactors, with screw-type terminals."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT5934-5BF41","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/3RT5934-5BF41 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}