{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1140-3GF42-0AA0-ZD00","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1140-3GF42-0AA0-ZD00","canonicalUrl":"https://aoctrl.com/siemens/3VA1140-3GF42-0AA0-ZD00","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1140-3GF42-0AA0-ZD00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 3VA1 IEC frame 160, breaking capacity class N, Icu=25kA @ 415V, 4-pole, line protection TM240, In=40A, overload Ir=28A...40A, short-circuit Ii=5...10 x In, N conductor protection 100%, nut keeper kit for DC Power OEM in China.","salesMarkdown":"## What this 3VA1 frame 160 breaker carries The Siemens 3VA1140-3GF42-0AA0-ZD00 is a 4-pole IEC circuit breaker on the 3VA1 frame 160, rated In=40A with a TM240 thermal-magnetic trip unit. Breaking capacity class N gives it Icu=25kA at 415 VAC — enough for most distribution panels downstream of a transformer, but check your available fault current before committing the BOM line. Overload protection is adjustable Ir=28A...40A via the TM240 dial, and short-circuit pickup Ii=5...10 x In. The N conductor is protected at 100%. The nut keeper kit (part of the ZD00 suffix) is meant for DC Power OEM builds in China — keeps the terminal nuts captive during assembly, which saves time on a production line. Four-pole configuration covers three-phase plus neutral. If your distribution uses a solidly-grounded wye system with a full-size neutral, this breaker handles it without a separate neutral disconnect. Icu=25kA at 415 V is the ultimate short-circuit breaking capacity — the breaker can clear one fault at that level and still be usable afterward (though you'd replace it in practice). For selectivity downstream of a 630 kVA transformer with around 20 kA available, this holds. Upstream of a larger transformer or in a high-fault location, you'd need class S or H (higher Icu). The TM240 thermal unit gives a flat time-current curve typical of thermal-magnetic breakers — no electronic adjustment for I²t or ground fault. That's fine for cable protection and general distribution; for motor circuits you'd want an electronic trip with adjustable curves.","metaTitle":"3VA1140-3GF42-0AA0-ZD00 3VA1 IEC Frame 160 Breaker, 25kA @ 4","metaDescription":"Siemens 3VA1140-3GF42-0AA0-ZD00 circuit breaker, IEC frame 160, breaking capacity class N, Icu=25kA @ 415V, 4-pole, In=40A, TM240 overload protection. Current lifecycle stage. Sour","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/3140edf214614db0c5318a7ed81cfbc3.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1667731&mlfb=3VA1140-3GF42-0AA0-ZD00","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1140-3GF42-0AA0-ZD00/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of this breaker?","answer":"Icu=25kA at 415 VAC, breaking capacity class N on the IEC 3VA1 frame 160."},{"question":"What does the ZD00 suffix mean on this order code?","answer":"The ZD00 suffix includes a nut keeper kit for DC Power OEM in China — keeps terminal nuts captive during panel assembly."},{"question":"What is the overload adjustment range on this breaker?","answer":"Overload protection Ir is adjustable from 28 A to 40 A via the TM240 thermal-magnetic trip unit."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1140-3GF42-0AA0-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/3VA1140-3GF42-0AA0-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}}