{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1225-4EE42-0AA0-ZD00","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1225-4EE42-0AA0-ZD00","canonicalUrl":"https://aoctrl.com/siemens/3VA1225-4EE42-0AA0-ZD00","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1225-4EE42-0AA0-ZD00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 3VA1 IEC frame 250, breaking capacity class S, 4-pole circuit breaker, 250A, Icu=36kA @ 415V, TM220 overload protection Ir=175A...250A, short-circuit protection Ii=10 x In.","salesMarkdown":"Overload protection is handled by a TM220 thermal-magnetic trip unit with an adjustable continuous current rating (Ir) from 175 A to 250 A, set by the user to match the downstream load. Short-circuit protection is fixed at Ii = 10 × In, meaning the magnetic trip fires at 2500 A. The N conductor is unprotected — this breaker is configured for a 3-pole plus solid-neutral application, not a fully protected 4-pole scheme. If your available fault current exceeds 36 kA, you need a higher-class frame (class H or L in the 3VA family) or a fused switch ahead of it. The Ir adjustment range (175 A to 250 A) lets you dial in the overload pickup for a 200 A feeder or a 225 A bus — you are not locked into a fixed rating. The fixed Ii at 10× In means the magnetic trip is not adjustable; if the downstream load has a high inrush (large transformers or capacitor banks), verify that 2500 A instantaneous pickup does not cause nuisance tripping on energization. ## Integration notes It occupies a standard 4-pole width in the panel; the nut keeper kit (included per the OEM variant) simplifies DC bus bar connections on the line side. The unprotected N conductor means the neutral bar passes through the breaker without a pole — verify your system grounding scheme before wiring.","metaTitle":"Siemens 3VA1225-4EE42-0AA0-ZD00 Circuit Breaker, 250A, 36kA","metaDescription":"Siemens 3VA1225-4EE42-0AA0-ZD00 circuit breaker, IEC frame 250, 36kA breaking capacity @ 415V, 4-pole, TM220 overload protection Ir=175A-250A. Current lifecycle stage. Sourced to o","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/b2480d99dab500b43a9bd86fb029b099.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1667940&mlfb=3VA1225-4EE42-0AA0-ZD00","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1225-4EE42-0AA0-ZD00/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of this breaker?","answer":"The ultimate breaking capacity (Icu) is 36 kA at 415 V AC, which places it in breaking capacity class S for the 3VA1 frame."},{"question":"Where can I buy 3VA1225-4EE42-0AA0-ZD00?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1225-4EE42-0AA0-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/3VA1225-4EE42-0AA0-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}}