{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1225-4GE42-0AA0-ZD00","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1225-4GE42-0AA0-ZD00","canonicalUrl":"https://aoctrl.com/siemens/3VA1225-4GE42-0AA0-ZD00","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1225-4GE42-0AA0-ZD00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 3VA1 IEC frame 250 MCCB, 4-pole, breaking capacity class S, Icu=36kA @ 415V, TM220 thermal-magnetic trip unit, In=250A, Ir=175-250A, Ii=10xIn, N conductor protection 100%, nut keeper kit for DC Power OEM in China.","salesMarkdown":"The Siemens 3VA1225-4GE42-0AA0-ZD00 is a 4-pole molded-case circuit breaker on the IEC frame 250 platform, rated In=250A with a TM220 thermal-magnetic trip unit. Overload protection is adjustable from Ir=175A to 250A via the TM220 dial, so you can fine-tune the trip point to the actual load without swapping the breaker body. Short-circuit protection is fixed at Ii=10 x In (2500A magnetic pickup), which is typical for line protection of cables and busbars rather than motor starting. The 100% N conductor protection means the neutral pole has its own overload and short-circuit sensing — not just a switched neutral. That matters for 4-wire systems where unbalanced neutral currents can reach fault levels. The nut keeper kit included suggests this variant is destined for a DC Power OEM assembly in China, but the breaker itself is a standard 3VA1 catalog part. The 36kA Icu at 415V is the ultimate breaking capacity — the breaker can clear one fault at that level and still be functional afterward. The 4-pole format with 100% N protection means it occupies four full pole widths in the enclosure — factor that into your panel layout.","metaTitle":"Siemens 3VA1225-4GE42-0AA0-ZD00 250A MCCB, 36kA @ 415V","metaDescription":"Siemens 3VA1225-4GE42-0AA0-ZD00 IEC frame 250 MCCB, 4-pole, Icu=36kA @ 415V, TM220 trip, Ir=175-250A, Ii=10xIn. Current lifecycle. Sourced to order against RFQ.","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":"https://cdn.aoctrl.com/af2a6d10704984ebe211b9e8e12464d7.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1667943&mlfb=3VA1225-4GE42-0AA0-ZD00","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1225-4GE42-0AA0-ZD00/alternatives.json"},"ai":{"faq":[{"question":"What is the adjustable overload range on this TM220 trip?","answer":"The overload protection Ir is adjustable from 175A to 250A via the TM220 dial. Short-circuit protection Ii is fixed at 10 x In (2500A)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1225-4GE42-0AA0-ZD00","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/3VA1225-4GE42-0AA0-ZD00 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}}