{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1140-6EF42-0AA0-ZD00","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1140-6EF42-0AA0-ZD00","canonicalUrl":"https://aoctrl.com/siemens/3VA1140-6EF42-0AA0-ZD00","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1140-6EF42-0AA0-ZD00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 3VA1 IEC frame 160, 4-pole circuit breaker, breaking capacity class H, Icu=70 kA @ 415 V, TM240 thermal-magnetic trip unit, In=40 A, overload protection Ir=28…40 A, short-circuit protection Ii=5…10 x In, N conductor unprotected, nut keeper kit, DC Power OEM in China.","salesMarkdown":"The Siemens 3VA1140-6EF42-0AA0-ZD00 is a 4-pole IEC frame 160 molded-case circuit breaker with a class H breaking capacity — meaning it can interrupt fault currents up to 70 kA at 415 V without self-destructing, which is the rating that governs selectivity coordination in a distribution board. The TM240 thermal-magnetic trip unit is fixed at In=40 A with an adjustable overload band Ir=28…40 A and a short-circuit magnetic pickup Ii adjustable from 5 to 10 times In. The TM240 trip unit is a thermal-magnetic design — the thermal bimetal handles overloads (Ir adjustable 28-40 A), the magnetic solenoid handles short-circuits (Ii adjustable 5-10 x In). The 4-pole configuration with unprotected N means the neutral pole is a switched-only pole — it opens and closes with the phases but has no overcurrent sensing. That is correct for a 3-phase + N system where the neutral is sized for unbalanced current only, not for a 4-wire feeder that must protect the neutral against a phase-to-neutral fault. If your code requires neutral protection, you need a 4-pole breaker with a protected neutral (typically a 3VA1 with a different order-code suffix). ## Deployment context","metaTitle":"Siemens 3VA1140-6EF42-0AA0-ZD00 3VA1 IEC Frame 160, 70 kA @","metaDescription":"Siemens 3VA1140-6EF42-0AA0-ZD00 circuit breaker, 3VA1 IEC frame 160, breaking capacity class H Icu=70kA @ 415V, 4-pole, TM240 thermal-magnetic trip, In=40A, Ir=28-40A, Ii=5-10xIn.","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/3a394f14fedcc7ce06273020a69e8b2f.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1667755&mlfb=3VA1140-6EF42-0AA0-ZD00","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1140-6EF42-0AA0-ZD00/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 3VA1140-6EF42-0AA0-ZD00?","answer":"Icu = 70 kA at 415 V, class H, on the IEC frame 160 platform."},{"question":"What does the TM240 trip unit mean?","answer":"It is a thermal-magnetic trip unit with a fixed continuous current rating In=40 A, an adjustable overload protection band Ir=28…40 A, and an adjustable short-circuit pickup Ii=5…10 x In."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1140-6EF42-0AA0-ZD00","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/3VA1140-6EF42-0AA0-ZD00 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}}