{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1934-5AB02","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1934-5AB02","canonicalUrl":"https://aoctrl.com/siemens/3RT1934-5AB02","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1934-5AB02","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS, Magnet coil, 3RT1934-5AB02, 24 V AC 50 Hz, Size S2, spring-loaded connection technology.","salesMarkdown":"The coil's operating range is 0.8 to 1.1 times the rated control supply voltage — meaning it must see at least 19.2 V at the terminals to pull in reliably, and it can tolerate up to 26.4 V without overheating. That 0.8 lower threshold is the dropout margin you plan around for brownout ride-through. ## Lifecycle and replacement This is a phased-out product. The successor is the SIRIUS 3RT2 series. The lifecycle stage is still listed as current. ## Panel integration and connection This coil mounts onto SIRIUS Size S2 contactors via the standard Siemens snap-on mechanism. The spring-loaded connection terminals require a screwdriver for wire termination. The 3RT1934-5AB02 is a SIRIUS-branded component, Siemens' modular contactor and motor-starter platform. As a magnet coil, it provides the electromagnetic force to close the contactor's main poles and auxiliary contacts. The 24 V AC control voltage keeps it within standard control-circuit voltages found across European and IEC panels.","metaTitle":"Siemens 3RT1934-5AB02 SIRIUS Magnet Coil, 24 V AC, Size S2","metaDescription":"Siemens 3RT1934-5AB02 SIRIUS magnet coil for Size S2 contactors, 24 V AC 50 Hz, spring-loaded connection. Phased-out; successor is SIRIUS 3RT2. 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":"24 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=100919&mlfb=3RT1934-5AB02","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1934-5AB02/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1934-5AB02","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/3RT1934-5AB02 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}}