{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1340-5EF32-0CA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1340-5EF32-0CA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1340-5EF32-0CA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1340-5EF32-0CA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 3VA1 series, IEC frame 400, class M, 3-pole MCCB, Icu=55kA @ 415V, TM240 trip unit, In=400A, Ir=280-400A, Ii=5-10xIn, with integrated undervoltage release 120-127V AC.","salesMarkdown":"## What this 3VA1 MCCB carries The Siemens 3VA1340-5EF32-0CA0 is a 3-pole IEC frame 400 molded-case circuit breaker with class M breaking capacity — 55 kA at 415 V AC. It ships with a TM240 thermal-magnetic trip unit rated 400 A (In). That adjustability lets a panel builder dial in the protection for a specific motor or transformer load without swapping trip units. Factory-fitted is an undervoltage release rated 120–127 V AC, 50/60 Hz. If the control voltage drops, the release trips the breaker open — standard practice for safety circuits or machinery where loss of control power should kill the main feed. The TM240 trip unit and undervoltage release are factory-installed — no field wiring of the release coil beyond the control voltage connection. Verify the release coil's AC supply (120–127 V) matches the panel control transformer tap before landing wires.","metaTitle":"Siemens 3VA1340-5EF32-0CA0 Circuit Breaker, 55kA @ 415V, 400","metaDescription":"Siemens 3VA1340-5EF32-0CA0 IEC frame 400 MCCB, 55kA breaking capacity at 415V, 3-pole, TM240 thermal-magnetic trip, 400A, with undervoltage release. Current production. Order to qu","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=1456433&mlfb=3VA1340-5EF32-0CA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1340-5EF32-0CA0/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of this MCCB?","answer":"Icu is 55 kA at 415 V AC, class M on the IEC frame 400 — enough for most main or feeder applications in a 400 V distribution board."},{"question":"What trip unit and adjustments does it have?","answer":"It has a TM240 thermal-magnetic trip unit rated 400 A (In). Overload Ir is adjustable from 280 A to 400 A; short-circuit Ii is adjustable from 5 to 10 times In."},{"question":"Does this breaker come with an undervoltage release?","answer":"Yes, factory-fitted with an undervoltage release rated 120–127 V AC, 50/60 Hz."},{"question":"Where can I buy the 3VA1340-5EF32-0CA0?","answer":"The part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1340-5EF32-0CA0","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/3VA1340-5EF32-0CA0 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}}