{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1225-4EF42-0JA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1225-4EF42-0JA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1225-4EF42-0JA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1225-4EF42-0JA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 3VA1 IEC frame 250, breaking capacity class S, Icu=36kA @ 415V, 4-pole, line protection TM240, ATAM, In=250A, overload protection Ir=175A...250A, short-circuit protection Ii=5...10 x In, N conductor unprotected, nut keeper kit, shunt trip (STL) 110-127V DC, AC 50/60Hz.","salesMarkdown":"The Siemens 3VA1225-4EF42-0JA0 is an IEC frame 250 molded-case circuit breaker in the 3VA1 series, class S breaking capacity, rated for 36 kA at 415 V AC. It is a 4-pole unit with line protection TM240 and ATAM, set for a nominal current In=250 A, with adjustable overload protection Ir from 175 A to 250 A and short-circuit protection Ii adjustable 5 to 10 times In. This breaker includes a shunt trip (STL) for 110-127 V DC or AC 50/60 Hz, a nut keeper kit, and leaves the N conductor unprotected. The TM240 thermal-magnetic trip unit provides standard cable and equipment protection, and the adjustable Ir and Ii ranges let you coordinate with downstream devices without swapping the breaker.","metaTitle":"Siemens 3VA1225-4EF42-0JA0 Circuit Breaker, 250A, 36kA @ 415","metaDescription":"Siemens 3VA1225-4EF42-0JA0 IEC frame 250 breaker, class S, Icu=36kA @ 415V, 4-pole, TM240, In=250A, Ir=175-250A, Ii=5-10xIn. Current lifecycle stage. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"lifecycle_stage":"current"}},"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=568526&mlfb=3VA1225-4EF42-0JA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1225-4EF42-0JA0/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 3VA1225-4EF42-0JA0?","answer":"The ultimate breaking capacity Icu is 36 kA at 415 V AC, class S per IEC standards."},{"question":"What is the adjustable overload range on this breaker?","answer":"Overload protection Ir is adjustable from 175 A to 250 A, and short-circuit protection Ii is adjustable 5 to 10 times In."},{"question":"Where can I buy 3VA1225-4EF42-0JA0?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1225-4EF42-0JA0","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/3VA1225-4EF42-0JA0 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}}