{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2440-5HR32-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2440-5HR32-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2440-5HR32-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2440-5HR32-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 3VA2 IEC frame 630, breaking capacity class M, Icu=55kA @ 415 V, 3-pole, line protection ETU345, LI DTVE, In=400A without overload protection Ir=160A...400A, short circuit protection Ii=15 x In, busbar connection.","salesMarkdown":"The Siemens 3VA2440-5HR32-0AA0 is a 3-pole IEC frame 630 molded case circuit breaker with a class M breaking capacity of Icu=55kA at 415 V AC — that is the maximum short-circuit current it can safely interrupt without damage at that voltage, which governs its suitability for high-fault installations like transformer secondaries or large motor control centers. The ETU345 LI trip unit is configured for line protection only: no overload (L) protection is active, meaning the long-time delay element is bypassed; the short-circuit protection (I) is fixed at Ii=15 x In. The continuous current rating In=400 A sets the breaker's nominal frame size, while the adjustable Ir range of 160 A to 400 A lets you match the thermal pickup to downstream cable or busbar ampacity — but since overload protection is disabled, Ir is effectively a setting for the short-time pickup, not a thermal trip threshold. The busbar connection (rear or plug-in style) suits it for direct mounting on a distribution busbar system rather than cable lugs. ## Deployment context: panel integration and selectivity As an IEC frame 630 breaker with busbar connection, the 3VA2440-5HR32-0AA0 is designed for installation in low-voltage switchgear and distribution panels where it mounts directly onto a busbar system — typical in main distribution boards (MDBs) or sub-distribution boards in industrial plants, commercial buildings, and infrastructure. The 3-pole configuration covers three-phase systems (L1, L2, L3) without a switched neutral.","metaTitle":"Siemens 3VA2440-5HR32-0AA0 Circuit Breaker, 400A, Icu=55kA @","metaDescription":"Siemens 3VA2440-5HR32-0AA0 IEC frame 630 circuit breaker, class M, Icu=55kA @ 415V, 3-pole, ETU345 LI trip unit, In=400A, busbar connection. Current lifecycle stage. Sourced to ord","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/0eb36652ce522f093395d6bd0dd27e34.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1547396&mlfb=3VA2440-5HR32-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2440-5HR32-0AA0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA2440-5HR32-0AA0 and how do I get a price?","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 quote."},{"question":"What is 3VA2440-5HR32-0AA0's listed breaking capacity and trip unit?","answer":"It is an IEC frame 630 breaker, class M, with Icu=55kA at 415 V, 3-pole, fitted with an ETU345 LI trip unit. The continuous rating In=400A, overload protection is disabled, and short-circuit protection is set at Ii=15 x In."},{"question":"What compliance documentation does this brand provide for 3VA2440-5HR32-0AA0?","answer":"The evidence does not list specific compliance documents (RoHS, REACH, UL, IEC) for this order code. Typically, Siemens provides a declaration of conformity and CE marking for IEC-rated breakers; verify documentation requirements at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2440-5HR32-0AA0","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/3VA2440-5HR32-0AA0 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}}