{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1140-4ED42-0AA0-ZD00","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1140-4ED42-0AA0-ZD00","canonicalUrl":"https://aoctrl.com/siemens/3VA1140-4ED42-0AA0-ZD00","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1140-4ED42-0AA0-ZD00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 3VA1 IEC frame 160, 4-pole circuit breaker, breaking capacity class S, Icu=36kA @ 415V, line protection TM210, FTFM, In=40A, Ir=40A fixed, Ii=10 x In, N conductor unprotected, nut keeper kit, DC Power OEM variant for China.","salesMarkdown":"The Siemens 3VA1140-4ED42-0AA0-ZD00 is a 4-pole IEC frame 160 molded case circuit breaker from the 3VA1 series, configured as a line protection TM210 thermal-magnetic unit with a fixed overload setting of 40 A and a fixed short-circuit pickup at 10 times In. This variant carries a nut keeper kit and is designated for DC Power OEM applications in China. The N conductor is unprotected, so the neutral bar in the panel must be sized for the full fault current — a detail the panel OEM wireman needs on the BOM line. The fixed Ir=40 A overload protection means the breaker is not field-adjustable for motor FLA mismatch — it is sized for a fixed 40 A resistive or lightly inductive load, typical of a panel feeder or a DC power supply input. The Ii=10 x In (400 A magnetic trip) gives a high short-circuit pickup, so nuisance tripping on inrush is unlikely, but it also means the breaker does not provide motor overload protection without an external overload relay. FTFM (Fixed Thermal, Fixed Magnetic) construction locks the protection curve; no trip-unit replacement or dial-down is possible in the field.","metaTitle":"Siemens 3VA1140-4ED42-0AA0-ZD00 Circuit Breaker, 40A, 36kA @","metaDescription":"Siemens 3VA1140-4ED42-0AA0-ZD00 IEC frame 160, 4-pole, 40A fixed thermal-magnetic, 36kA breaking capacity class S. Current lifecycle. Quoted 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/e1c2bd0d9788c23e24b226d50ef7b09d.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1667733&mlfb=3VA1140-4ED42-0AA0-ZD00","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1140-4ED42-0AA0-ZD00/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1140-4ED42-0AA0-ZD00?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution; availability and current pricing are confirmed at quote time."},{"question":"What is the breaking capacity of this breaker?","answer":"It has a breaking capacity class S with Icu=36 kA at 415 V, suitable for high-fault industrial panels."},{"question":"Is the overload protection adjustable on this variant?","answer":"No, the overload protection Ir is fixed at 40 A and the short-circuit pickup Ii is fixed at 10 x In — the FTFM construction does not allow field adjustment."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1140-4ED42-0AA0-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/3VA1140-4ED42-0AA0-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}}