{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2040-5HN32-0AJ0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2040-5HN32-0AJ0","canonicalUrl":"https://aoctrl.com/siemens/3VA2040-5HN32-0AJ0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2040-5HN32-0AJ0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 3VA2 IEC frame 100 MCCB, breaking capacity class M, Icu=55kA @ 415V, 3-pole, ETU350 LSI electronic trip, In=40A, with nut keeper kit, 2 auxiliary switches changeover H, 1 trip alarm switch changeover.","salesMarkdown":"The Siemens 3VA2040-5HN32-0AJ0 is a 3-pole IEC frame 100 molded case circuit breaker with a 55 kA breaking capacity at 415 V (class M). The ETU350 electronic trip unit gives you LSI protection: long-time (Ir adjustable 16 A to 40 A), short-time (Isd 1.5 to 10 x Ir), and instantaneous (Ii fixed at 12 x In). That adjustable short-time band lets you achieve selective coordination downstream, so a branch fault clears without dropping the main feeder. That saves panel-build labor versus field-fitting accessory packs. The factory-fitted auxiliary switches and alarm contact reduce wiring points inside the enclosure — fewer terminal blocks, less chance of a loose connection during commissioning.","metaTitle":"Siemens 3VA2040-5HN32-0AJ0 Circuit Breaker, 55kA @ 415V, 40A","metaDescription":"Siemens 3VA2040-5HN32-0AJ0 IEC frame 100 MCCB, 55kA breaking capacity at 415V, ETU350 LSI trip, 40A. Current production. Quoted 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":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1389977&mlfb=3VA2040-5HN32-0AJ0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2040-5HN32-0AJ0/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of this MCCB?","answer":"The Icu is 55 kA at 415 V AC, which is the class M breaking capacity for the Siemens 3VA2 IEC frame 100 platform."},{"question":"What trip unit and settings does this breaker use?","answer":"It uses an ETU350 electronic trip unit with LSI protection: overload Ir adjustable 16 A to 40 A, short-time Isd 1.5 to 10 x Ir, and instantaneous Ii fixed at 12 x In (480 A)."},{"question":"What accessories are included with 3VA2040-5HN32-0AJ0?","answer":"Factory-fitted: a nut keeper kit, two auxiliary switch changeover contacts (H), and one trip alarm switch changeover contact."},{"question":"Where can I buy 3VA2040-5HN32-0AJ0?","answer":"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/3VA2040-5HN32-0AJ0","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/3VA2040-5HN32-0AJ0 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}}