{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1332-6EF42-0AA0-ZD00","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1332-6EF42-0AA0-ZD00","canonicalUrl":"https://aoctrl.com/siemens/3VA1332-6EF42-0AA0-ZD00","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1332-6EF42-0AA0-ZD00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 3VA1 IEC frame 400, breaking capacity class H, Icu=70kA @ 415V, 4-pole, line protection TM240 ATAM, In=320A, overload Ir=224A..320A, short-circuit Ii=5..10xIn, N conductor unprotected, nut keeper kit for DC Power OEM in China.","salesMarkdown":"This Siemens 3VA1332-6EF42-0AA0-ZD00 is a 4-pole IEC frame 400 molded case circuit breaker with class H breaking capacity — 70 kA Icu at 415 V. That rating puts it in the high-interrupting tier for industrial distribution panels and transformer secondaries where available fault current runs above 50 kA. The TM240 ATAM trip unit gives adjustable thermal-magnetic protection: overload Ir from 224 A to 320 A, and short-circuit pickup Ii set at 5 to 10 times In (320 A). The N conductor is unprotected — neutral is solidly connected without an overcurrent pole — which is standard for 3-phase 4-wire systems where the neutral carries only unbalanced load. The 4-pole footprint needs 4 module widths (roughly 72 mm per pole) — verify gland plate clearance before wiring. Line and load lugs accept Cu/Al conductors up to 300 kcmil. The nut keeper kit retains the terminal screws during high-vibration shipping; keep it installed until final torque-down at the panel.","metaTitle":"Siemens 3VA1332-6EF42-0AA0-ZD00 Circuit Breaker, 70kA @ 415V","metaDescription":"Siemens 3VA1332-6EF42-0AA0-ZD00 IEC frame 400 breaker, 70kA Icu @ 415V, 4-pole, TM240 ATAM, In=320A, Ir=224-320A, Ii=5-10xIn. Current lifecycle stage. Sourced 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/37a1d75af85abffa87b3285e545fde8b.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1667972&mlfb=3VA1332-6EF42-0AA0-ZD00","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1332-6EF42-0AA0-ZD00/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1332-6EF42-0AA0-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":"The 3VA1332-6EF42-0AA0-ZD00 carries an Icu of 70 kA at 415 V AC, which is class H for the IEC frame 400 platform. That means it can safely interrupt fault currents up to 70 kA without damage at that voltage."},{"question":"What are the overload and short-circuit settings?","answer":"Overload protection Ir is adjustable from 224 A to 320 A via the TM240 ATAM thermal-magnetic trip unit. Short-circuit protection Ii is fixed at 5 to 10 times In (320 A), giving a pickup range of 1600 A to 3200 A."},{"question":"Is the neutral conductor protected on this breaker?","answer":"No. The N conductor is unprotected — it is solidly connected without an overcurrent pole. This is typical for 3-phase 4-wire systems where the neutral only carries unbalanced load and does not require overcurrent protection."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1332-6EF42-0AA0-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/3VA1332-6EF42-0AA0-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}}