{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1340-5EE42-0AA0-ZD00","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1340-5EE42-0AA0-ZD00","canonicalUrl":"https://aoctrl.com/siemens/3VA1340-5EE42-0AA0-ZD00","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1340-5EE42-0AA0-ZD00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 3VA1 IEC frame 400 circuit breaker, breaking capacity class M, Icu=55kA @ 415V, 4-pole, line protection TM220, ATFM, In=400A, overload protection Ir=280A...400A, short-circuit protection Ii=10 x In.","salesMarkdown":"The Siemens 3VA1340-5EE42-0AA0-ZD00 is a 4-pole IEC frame 400 molded case circuit breaker with a 55 kA Icu at 415 V, placing it in breaking capacity class M. The TM220 thermal-magnetic trip unit provides adjustable overload protection from 280 A to 400 A, with a fixed short-circuit pickup at 10 x In. For selectivity studies, the 10 x In instantaneous pickup (Ii = 4000 A) coordinates with downstream 50 kA-rated MCCBs in a typical 415 V distribution panel. The adjustable Ir band (280–400 A) lets you match the breaker to the actual continuous load without swapping the trip unit, which is useful when the same frame size serves multiple transformer or feeder ratings. ## Deployment Context This 4-pole breaker mounts in a standard IEC distribution panel or switchboard — the frame 400 footprint is common across the 3VA1 platform. The nut keeper kit for DC Power OEM in China indicates a specific accessory provision for DC-side applications, though the breaker itself is an AC-rated device per the IEC 60947-2 standard that governs its 55 kA rating. Panel builders should verify the neutral conductor unprotected configuration against the system earthing arrangement before wiring.","metaTitle":"Siemens 3VA1340-5EE42-0AA0-ZD00 Circuit Breaker, 400A, 55kA","metaDescription":"Siemens 3VA1340-5EE42-0AA0-ZD00 IEC frame 400 circuit breaker, 55kA Icu @ 415V, 4-pole, TM220 overload protection 280-400A. Current lifecycle stage. Available 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/f59d8c360c846d5ff9ef773daebb7908.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1667982&mlfb=3VA1340-5EE42-0AA0-ZD00","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1340-5EE42-0AA0-ZD00/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1340-5EE42-0AA0-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 circuit breaker?","answer":"The ultimate short-circuit breaking capacity (Icu) is 55 kA at 415 V, placing it in breaking capacity class M per the IEC 60947-2 standard."},{"question":"What does the TM220 trip unit mean?","answer":"TM220 is a thermal-magnetic trip unit with adjustable overload protection (Ir) from 280 A to 400 A and a fixed short-circuit pickup (Ii) at 10 times the rated current (In = 400 A)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1340-5EE42-0AA0-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/3VA1340-5EE42-0AA0-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}}