{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2340-6JP42-0BC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2340-6JP42-0BC0","canonicalUrl":"https://aoctrl.com/siemens/3VA2340-6JP42-0BC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2340-6JP42-0BC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 3VA2 IEC frame 400, breaking capacity class H, 4-pole MCCB with ETU550 LSI trip unit, In=400A, Icu=85kA @ 415V.","salesMarkdown":"## What this 400A MCCB carries The Siemens 3VA2340-6JP42-0BC0 is a 4-pole IEC frame 400 molded case circuit breaker with breaking capacity class H — meaning it interrupts 85 kA at 415 V AC without damage. That SCCR headroom covers most industrial distribution panels downstream of a transformer, giving the site electrical engineer selectivity margin against a 50 kA fault on the secondary side. The ETU550 trip unit is LSI configurable: overload protection Ir adjustable from 160 A to 400 A, short-time pickup Isd from 0.6 to 10× In, and instantaneous Ii from 1.5 to 10× In. The description also notes an undervoltage release (24 V DC) accessory compatible with 3VA1 and 3VA20 frames, plus up to 2 auxiliary switches — these are field-fit, so the commissioning engineer should verify the UVR coil voltage matches the control circuit before energizing.","metaTitle":"Siemens 3VA2340-6JP42-0BC0 400A MCCB, 85kA @ 415V","metaDescription":"Siemens 3VA2340-6JP42-0BC0 IEC frame 400 MCCB, breaking capacity class H Icu=85kA @ 415V, 4-pole, ETU550 LSI trip, In=400A. Current lifecycle stage. Sourced to order.","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=1400747&mlfb=3VA2340-6JP42-0BC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2340-6JP42-0BC0/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of this MCCB?","answer":"Icu = 85 kA at 415 V AC, breaking capacity class H per IEC 60947-2. That rating governs its ability to safely clear a fault without upstream coordination failure."},{"question":"Where can I buy 3VA2340-6JP42-0BC0 and get a price?","answer":"This part is sourced to order against an RFQ through independent distribution. Submit a request with your quantity and target delivery date; availability and pricing are confirmed at quote time."},{"question":"What trip unit does this breaker use?","answer":"ETU550 with LSI protection: overload Ir = 160–400 A, short-time pickup Isd = 0.6–10× In, instantaneous Ii = 1.5–10× In. Neutral protection adjustable OFF to 100%."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2340-6JP42-0BC0","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/3VA2340-6JP42-0BC0 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}}