{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2340-6HN42-0KA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2340-6HN42-0KA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2340-6HN42-0KA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2340-6HN42-0KA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 3VA2 IEC frame 400 circuit breaker, breaking capacity class H, Icu=85kA @ 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, shunt trip left 208-277 V AC 50/60 Hz 220-250 V DC accessory.","salesMarkdown":"The 3VA2340-6HN42-0KA0 is a Siemens IEC frame 400 molded-case circuit breaker with a 400 A frame and an interrupting capacity of 85 kA at 415 V AC (class H). The ETU350 electronic trip unit provides LSI protection: long-time (Ir adjustable 160–400 A), short-time (Isd 1.5–10 x Ir), and instantaneous (Ii fixed at 10 x In). The neutral conductor protection is field-adjustable to OFF, 50%, or 100% of the phase setting, which matters when you're feeding a 4-wire system with harmonic loads. The shunt trip accessory (left-mounted, 208–277 V AC 50/60 Hz or 220–250 V DC) allows remote tripping — useful for emergency-stop circuits or interlocking with a fire-alarm panel. ## Deployment context The 4-pole configuration suits three-phase plus neutral applications — common in commercial buildings, industrial switchboards, and machine-tool power distribution. The adjustable N protection is a practical feature for retrofits where the neutral conductor sizing may differ from the phase conductors.","metaTitle":"Siemens 3VA2340-6HN42-0KA0 Circuit Breaker, 400A, 85kA @ 415","metaDescription":"Siemens 3VA2340-6HN42-0KA0 IEC frame 400 circuit breaker, 85kA breaking capacity at 415V AC, ETU350 LSI trip unit, 400A rated. Active lifecycle. 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=1418265&mlfb=3VA2340-6HN42-0KA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2340-6HN42-0KA0/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of this breaker?","answer":"The 3VA2340-6HN42-0KA0 has an Icu of 85 kA at 415 V AC, which is the class H rating for the 3VA2 IEC frame 400 series."},{"question":"How do I get current pricing and availability for 3VA2340-6HN42-0KA0?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Submit an RFQ for current pricing and confirmed availability at quote time."},{"question":"What compliance documentation does Siemens provide for 3VA2340-6HN42-0KA0?","answer":"Siemens typically provides RoHS, REACH, and UL/IEC compliance documentation for its 3VA series breakers. Specific certificates are available upon request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2340-6HN42-0KA0","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/3VA2340-6HN42-0KA0 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}}