{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2340-6JP42-0AJ0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2340-6JP42-0AJ0","canonicalUrl":"https://aoctrl.com/siemens/3VA2340-6JP42-0AJ0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2340-6JP42-0AJ0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 3VA2 IEC frame 400 circuit breaker, breaking capacity class H, 85kA @ 415V, 4-pole, ETU550 LSI trip unit, 400A, with 2 auxiliary changeover switches and 1 trip alarm changeover switch.","salesMarkdown":"## What this 3VA2 breaker brings to the panel The Siemens 3VA2340-6JP42-0AJ0 is a 4-pole IEC frame 400 circuit breaker with an 85 kA breaking capacity at 415 V — class H, meaning it handles high fault currents common in industrial distribution without needing a current-limiting upstream device. The ETU550 trip unit gives you LSI protection: long-time (overload) adjustable from 160 A to 400 A, short-time (selective) from 0.6x to 10x In, and instantaneous from 1.5x to 10x In. That adjustable short-time delay is what lets you coordinate downstream breakers for selectivity — a key requirement for plant engineers who want only the faulted branch to open, not the whole feeder. The N-conductor protection is adjustable from OFF to 100%, so you can match the neutral sizing to the load — useful on 4-wire systems where the neutral carries harmonics from single-phase loads. The built-in 2 auxiliary changeover switches and 1 trip alarm changeover switch give remote status without adding external relays, which saves DIN rail space and wiring time. ## Integration notes for panel OEMs and field installers The nut keeper kit (included per the description) keeps the busbar screws from dropping into the panel during assembly, a small but real time-saver on a production line. For commissioning engineers: the ETU550 is field-adjustable; the rotary dials for Ir, Isd, and Ii are accessible without removing the cover, so you can dial in the coordination study values on-site with a screwdriver. No special software needed.","metaTitle":"Siemens 3VA2340-6JP42-0AJ0 Circuit Breaker, 400A, 85kA @ 415","metaDescription":"Siemens 3VA2340-6JP42-0AJ0 IEC frame 400 breaker, 85kA @ 415V, ETU550 LSI protection, 4-pole, 400A. Active production. Request quote.","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=1389933&mlfb=3VA2340-6JP42-0AJ0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2340-6JP42-0AJ0/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings of this breaker?","answer":"It is a 4-pole IEC frame 400 breaker rated 400 A with a breaking capacity of 85 kA at 415 V (class H). The ETU550 trip unit provides LSI protection with Ir adjustable 160–400 A, Isd 0.6–10x In, and Ii 1.5–10x In. It includes 2 auxiliary changeover switches and 1 trip alarm changeover switch."},{"question":"Where can I buy 3VA2340-6JP42-0AJ0?","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 price and lead time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2340-6JP42-0AJ0","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/3VA2340-6JP42-0AJ0 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}}