{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2340-5HN32-0LC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2340-5HN32-0LC0","canonicalUrl":"https://aoctrl.com/siemens/3VA2340-5HN32-0LC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2340-5HN32-0LC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2, IEC frame 400, 3-pole MCCB, 55 kA Icu @ 415 V, ETU350 LSI trip unit, In = 400 A, with universal release 24 V DC accessory and nut keeper kit.","salesMarkdown":"The Siemens 3VA2340-5HN32-0LC0 is a 3-pole IEC frame 400 molded case circuit breaker from the SENTRON 3VA2 series, rated for line protection with an ETU350 LSI trip unit. The continuous current rating In is 400 A, with overload protection Ir adjustable from 160 A to 400 A, and short-circuit protection Isd adjustable from 1.5 to 10 times Ir. Instantaneous pickup Ii is fixed at 10 x In. This breaker also includes a universal release 24 V DC accessory for shunt or undervoltage tripping, plus space for up to two auxiliary switches. In a 400 V distribution panel fed by a transformer of 1000 kVA or larger, prospective fault currents often exceed 25 kA — this unit handles that margin. The ETU350 is an electronic trip unit, meaning it holds its calibration over temperature and allows finer adjustment than a thermal-magnetic. The 24 V DC universal release accessory is wired separately for remote tripping via a safety circuit or emergency-stop chain. ## Deployment context The nut keeper kit (included) secures the breaker to the busbar assembly — a detail that saves time during panel build because the nuts stay captive while you torque the bus connections. The 3-pole configuration is typical for three-phase 400 V line protection feeding motor control centers, lighting panels, or sub-distribution boards.","metaTitle":"Siemens 3VA2340-5HN32-0LC0 Circuit Breaker, 400A, 55kA @ 415","metaDescription":"Siemens 3VA2340-5HN32-0LC0 IEC frame 400 MCCB, 3-pole, 55kA Icu @ 415V, ETU350 LSI trip, In=400A. Current lifecycle stage. Available 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/c1b3b6c5f6d67465025ac41848ceb75e.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1478178&mlfb=3VA2340-5HN32-0LC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2340-5HN32-0LC0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy the 3VA2340-5HN32-0LC0 and get a price?","answer":"We source this breaker to order against an RFQ. Submit a request for quote; availability and current pricing are confirmed at quote time through independent distribution channels."},{"question":"What does the 55 kA Icu @ 415 V rating mean?","answer":"It means this breaker can safely interrupt a short-circuit current up to 55,000 amperes at 415 V AC without failing. That is the 'M' (medium) breaking capacity class in the 3VA2 family, suitable for most industrial distribution panels where fault currents are in the 25–50 kA range."},{"question":"What trip unit does the 3VA2340-5HN32-0LC0 use?","answer":"It uses an ETU350 electronic trip unit with LSI protection: long-time (overload) adjustable 160–400 A, short-time (selective) adjustable 1.5–10 x Ir, and instantaneous fixed at 10 x In. The electronic design maintains accuracy across temperature variations."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2340-5HN32-0LC0","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/3VA2340-5HN32-0LC0 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}}