{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1934-5BW41","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1934-5BW41","canonicalUrl":"https://aoctrl.com/siemens/3RT1934-5BW41","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1934-5BW41","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS magnet coil, 48 V DC, Size S2, screw terminal, order code 3RT1934-5BW41.","salesMarkdown":"The Siemens SIRIUS 3RT1934-5BW41 is a 48 V DC magnet coil for Size S2 contactors, terminated with screw terminals. It is the replaceable coil assembly that energizes the contactor's armature. The coil is rated for 48 V DC — this is the nominal pick-up and hold voltage. The Size S2 designation matches the contactor frame it fits. ## Deployment context This coil is used inside a control panel on a DIN-rail-mounted SIRIUS contactor. The 48 V DC control voltage is less common than 24 V DC, so verify the control transformer or power supply before specifying. The coil's DC rating means it has built-in suppression for the inductive kickback — but for long cable runs, a free-wheeling diode across the coil terminals is still good practice to protect the PLC output driving it.","metaTitle":"Siemens 3RT1934-5BW41 SIRIUS Magnet Coil, 48 V DC, Size S2","metaDescription":"Siemens SIRIUS 3RT1934-5BW41 magnet coil, 48 V DC, Size S2, screw terminal. Phased-out product; successor is SIRIUS 3RT2. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"lifecycle_stage":"current","Product Brand Name":"SIRIUS","1 at DC rated value":"48 V","Product Designation":"Magnet coil","Type Of Voltage Of The Control Supply Voltage":"DC"}},"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=110006&mlfb=3RT1934-5BW41","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1934-5BW41/alternatives.json"},"ai":{"faq":[{"question":"What replaces the 3RT1934-5BW41?","answer":"The official Siemens successor is the SIRIUS 3RT2 series coil. The exact order code depends on the contactor frame size and voltage; the 3RT2 series uses the same Size S2 frame and 48 V DC coil voltage, but the terminal arrangement and mounting may differ slightly. Verify the replacement against your contactor's nameplate before ordering."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1934-5BW41","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/3RT1934-5BW41 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}}