{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1332-5EF42-0AA0-ZD00","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1332-5EF42-0AA0-ZD00","canonicalUrl":"https://aoctrl.com/siemens/3VA1332-5EF42-0AA0-ZD00","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1332-5EF42-0AA0-ZD00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 3VA1 IEC frame 400, breaking capacity class M, 4-pole circuit breaker, TM240, In=320A, Icu=55kA @ 415V, overload protection Ir=224A...320A, short-circuit protection Ii=5...10 x In.","salesMarkdown":"## What this breaker delivers The Siemens 3VA1332-5EF42-0AA0-ZD00 is a 4-pole IEC frame 400 circuit breaker rated In=320A with a TM240 thermal-magnetic trip unit. Its Icu=55kA @ 415V puts it in breaking capacity class M — high enough for most industrial main or feeder applications where the fault current at the panelboard stays under that threshold. The overload protection band Ir=224A...320A and short-circuit protection Ii=5...10 x In give you a wide adjustment window to coordinate with downstream devices without swapping trip units. ## Application context The 4-pole configuration suits three-phase loads with a switched neutral (N conductor unprotected, per the spec). The nut keeper kit for DC Power OEM in China is included — a detail that matters if you are integrating this into a DC-side distribution assembly. For AC motor or transformer feeder duty, the TM240 curve provides inverse-time thermal protection and instantaneous magnetic pickup; set Ii to 5 x In for general distribution or 10 x In for high-inrush loads.","metaTitle":"Siemens 3VA1332-5EF42-0AA0-ZD00 Circuit Breaker, 320A, 55kA","metaDescription":"Siemens 3VA1332-5EF42-0AA0-ZD00 IEC frame 400, class M, 4-pole, TM240, In=320A, Icu=55kA @ 415V. Current lifecycle stage. 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/b43eae0e16ba119895f389e4f67496c0.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1667966&mlfb=3VA1332-5EF42-0AA0-ZD00","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1332-5EF42-0AA0-ZD00/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1332-5EF42-0AA0-ZD00 and get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Submit an RFQ for current availability and pricing."},{"question":"What are the key ratings of 3VA1332-5EF42-0AA0-ZD00?","answer":"It is a 4-pole IEC frame 400 circuit breaker, In=320A, Icu=55kA @ 415V (class M), with a TM240 thermal-magnetic trip unit. Overload protection Ir is adjustable 224A...320A; short-circuit protection Ii is adjustable 5...10 x In."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1332-5EF42-0AA0-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/3VA1332-5EF42-0AA0-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}}