{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2340-0HN32-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2340-0HN32-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2340-0HN32-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2340-0HN32-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2340-0HN32-0AA0, molded case circuit breaker, 3-pole, 400 A continuous, 440 kA at 415 V AC, ETU350 release, line protection design.","salesMarkdown":"The Siemens SENTRON 3VA2340-0HN32-0AA0 is a 3-pole molded case circuit breaker rated for 400 A continuous current with a breaking capacity of 440 kA at 415 V AC — that's the short-circuit rating that governs selectivity in a main or feeder position. ## Thermal derating — where the 400 A holds and where it drops At 55 °C it derates to 385 A, at 60 °C to 370 A, at 65 °C to 355 A, and at 70 °C to 340 A. The IEC 81346-2 reference code Q confirms it's classified as a switching device in the panel schematic. ## Breaking capacity across voltage levels The 690 V rating still covers most industrial 480/600 V class installations with headroom. ## What's not on this variant If you need any of those — remote signaling, shunt trip, GFCI — this isn't the order code. The ETU350 release is electronic, so it does provide zone-selective interlocking (ZSI) capability if paired with a compatible upstream breaker, but that's a system-level feature, not a built-in module on this unit.","metaTitle":"Siemens 3VA2340-0HN32-0AA0 SENTRON MCCB, 400 A, 3-Pole, 440","metaDescription":"Siemens SENTRON 3VA2340-0HN32-0AA0 molded case circuit breaker, 400 A continuous, 3-pole, 440 kA breaking capacity at 415 V AC. Active production. Quoted to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"110 mm","Width":"138 mm","Height":"248 mm","Maximum":"4 800 A","Minimum":"600 A","at 415 V":"440 kA","at 690 V":"187 kA","at 40 °C":"400 A","at 45 °C":"400 A","at 50 °C":"400 A","at 55 °C":"385 A","at 60 °C":"370 A","at 65 °C":"355 A","at 70 °C":"340 A","Depth [In]":"4.33 in","Width [In]":"5.43 in","Height [In]":"9.76 in","Trip Indicator":"No","Number Of Poles":"3","Voltage Trigger":"No","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Undervoltage Release":"No","Design Of The Product":"Line protection","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"96 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Ground-Fault Monitoring Version":"Without","Continuous Current / Rated Value":"400 A","Insulation Voltage / Rated Value":"800 V","Design Of The Overcurrent Release":"ETU350","protection class IP / on the front":"IP40","Product Function / Grounding Protection":"No","operating voltage / at AC / rated value":"690 V","reference code / according to IEC 81346-2":"Q","Continuous Current / Rated Value / Maximum":"400 A","Product Extension / Optional / Motor Drive":"Yes","Protection Function Of The Overcurrent Release":"LSI","number of CO contacts / for auxiliary contacts":"0","Switching Capacity Class Of The Circuit Breaker":"E","Mechanical Service Life (Operating Cycles) / Typical":"20 000","Type Of Electrical Connection / For Main Current Circuit":"on both sides nut keeper kit","Arrangement Of Electrical Connectors / For Main Current Circuit":"Front terminal"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/c1b3b6c5f6d67465025ac41848ceb75e.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1417859&mlfb=3VA2340-0HN32-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2340-0HN32-0AA0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA2340-0HN32-0AA0 and how is it quoted?","answer":"This breaker is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2340-0HN32-0AA0","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/3VA2340-0HN32-0AA0 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}}