{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2340-5HN42-0LH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2340-5HN42-0LH0","canonicalUrl":"https://aoctrl.com/siemens/3VA2340-5HN42-0LH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2340-5HN42-0LH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 3VA2 IEC frame 400, breaking capacity class M, Icu=55kA @ 415V, 4-pole, line protection ETU350, LSI, In=400A, overload protection Ir=160A...400A, short-circuit protection Isd=1.5...10 x Ir, Ii=10 x In, N conductor protection adjustable (OFF, 50%, 100%), nut keeper kit, universal release 24 V DC accessory, up to 2 auxiliary switch.","salesMarkdown":"The Siemens 3VA2340-5HN42-0LH0 is a 4-pole IEC frame 400 molded-case circuit breaker with a 55 kA interrupting capacity at 415 V (breaking capacity class M). It carries a 400 A continuous rating (In) and is fitted with an ETU350 LSI electronic trip unit. The overload protection (Ir) is adjustable from 160 A to 400 A; short-circuit protection (Isd) is set from 1.5 to 10 times Ir, with an instantaneous pickup (Ii) fixed at 10 times In. The neutral conductor protection is selectable: OFF, 50%, or 100% of the phase protection. A 24 V DC universal release accessory is included, along with a nut keeper kit and provision for up to two auxiliary switches. The 4-pole configuration handles three-phase plus neutral in a single package, simplifying wiring in distribution boards. The ETU350 LSI trip unit allows field-adjustable settings without opening the breaker — a time-saver during commissioning or when load characteristics change.","metaTitle":"Siemens 3VA2340-5HN42-0LH0 Circuit Breaker, 400A, 55kA @ 415","metaDescription":"Siemens 3VA2340-5HN42-0LH0 IEC frame 400 circuit breaker, 55kA breaking capacity, ETU350 LSI trip unit, 400A rated current. Currently in production. 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/c1b3b6c5f6d67465025ac41848ceb75e.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1477610&mlfb=3VA2340-5HN42-0LH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2340-5HN42-0LH0/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 3VA2340-5HN42-0LH0?","answer":"The Icu is 55 kA at 415 V, which is the breaking capacity class M for the 3VA2 IEC frame 400 series."},{"question":"Where can I buy 3VA2340-5HN42-0LH0 and how is it quoted?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution; availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2340-5HN42-0LH0","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/3VA2340-5HN42-0LH0 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}}