{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1140-3EF42-0AA0-ZD00","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1140-3EF42-0AA0-ZD00","canonicalUrl":"https://aoctrl.com/siemens/3VA1140-3EF42-0AA0-ZD00","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1140-3EF42-0AA0-ZD00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 3VA1 IEC frame 160, 4-pole molded case circuit breaker, breaking capacity class N, Icu=25kA @ 415V, TM240 overload protection, In=40A, Ir=28A...40A, Ii=5...10 x In, N conductor unprotected, nut keeper kit for DC Power OEM in China.","salesMarkdown":"The TM240 thermal-magnetic trip unit provides adjustable overload protection (Ir) from 28A to 40A, with a fixed In of 40A. This specific order code includes a nut keeper kit and is designated for DC Power OEM in China — the kit keeps hardware captive during panel assembly, a detail that matters if you're building pre-wired DC power distribution sections. ## Deployment Context The 4-pole form factor suits 3-phase + N distribution boards or DC power distribution where a switched neutral is required.","metaTitle":"3VA1140-3EF42-0AA0-ZD00 Circuit Breaker, 25kA @ 415V, 40A","metaDescription":"3VA1140-3EF42-0AA0-ZD00 circuit breaker, IEC frame 160, 25kA breaking capacity @ 415V, 4-pole, 40A In, TM240 overload. Current lifecycle. Available 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/76cb7ed5d460ccbb8b1e9893d35a0047.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1667728&mlfb=3VA1140-3EF42-0AA0-ZD00","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1140-3EF42-0AA0-ZD00/alternatives.json"},"ai":{"faq":[{"question":"What overload and short-circuit settings does this breaker have?","answer":"Overload protection Ir is adjustable from 28A to 40A via the TM240 thermal-magnetic trip unit. Short-circuit protection Ii is adjustable from 5 to 10 times In (200A to 400A at the 40A In setting)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1140-3EF42-0AA0-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/3VA1140-3EF42-0AA0-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}}