{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2340-8HN32-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2340-8HN32-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2340-8HN32-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2340-8HN32-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2340-8HN32-0AA0, 3-pole molded case circuit breaker, 400 A rated continuous current, ETU350 electronic trip unit, 440 kA breaking capacity at 240 V.","salesMarkdown":"The Siemens SENTRON 3VA2340-8HN32-0AA0 is a 3-pole molded case circuit breaker (MCCB) rated for line protection, carrying a continuous current of 400 A at 40–50 °C and an ETU350 electronic trip unit. Its breaking capacity reaches 440 kA at 240 V, 330 kA at 415 V, and 52.5 kA at 690 V — meaning it can safely clear high-fault currents in low-voltage distribution without upstream cascading. At 240 V the 440 kA rating covers most North American transformer-fed services; at 415/440 V the 330 kA figure suits heavy industrial switchboards. Thermal derating starts at 55 °C — the 400 A rating holds through 50 °C, then drops to 385 A at 55 °C, 370 A at 60 °C, and 340 A at 70 °C. Factor that into the panel ambient if the breaker sits near transformers or drives. Max power loss is 96 W, so allow convection clearance.","metaTitle":"Siemens SENTRON 3VA2340-8HN32-0AA0 MCCB, 400 A, 440 kA at 24","metaDescription":"Siemens SENTRON 3VA2340-8HN32-0AA0 molded case circuit breaker, 400 A, 3-pole, ETU350 trip unit, 440 kA at 240 V. Active production. Quoted to order.","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","at 240 V":"440 kA","at 415 V":"330 kA","at 440 V":"330 kA","at 500 V":"220 kA","at 690 V":"52.5 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","Product version":"Line protection","Voltage Trigger":"No","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Undervoltage Release":"No","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","rated insulation voltage Ui":"800 V","Courant permanent assigné Iu":"400 A","Ground-Fault Monitoring Version":"Without","Design Of The Overcurrent Release":"ETU350","protection class IP / on the front":"IP40","reference code / acc. to IEC 81346-2":"Q","Product Extension / Optional / Motor Drive":"Yes","Adjustable response value current / li max.":"4 000 A","Adjustable response value current / li min.":"4 000 A","Neutral conductors / upgradeable/retrofittable":"No","Protection Function Of The Overcurrent Release":"LSI","number of CO contacts / for auxiliary contacts":"0","Switching Capacity Class Of The Circuit Breaker":"L","Max. rated operational current of the frame size":"400 A","Mechanical Service Life (Switching 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","Type of connectable conductor cross-section, connection screw, width x thickness , max.":"35 x 10 mm","Type of connectable conductor cross-section, connection screw, width x thickness , min.":"20 x 1 mm"}},"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=255462&mlfb=3VA2340-8HN32-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2340-8HN32-0AA0/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional alternative to 3VA2340-8HN32-0AA0?","answer":"The 3VA2110-8HN32-0AA0 is a lower-current sibling in the same SENTRON 3VA2 family, but it uses the same frame size and ETU350 trip unit; the 3VA2340-8HN32-0AA0 carries a 400 A continuous rating versus the 3VA2110's 100 A rating, so the panel cutout and mounting are identical, but the conductor sizing and fault-clearing capability differ."},{"question":"Where can I buy 3VA2340-8HN32-0AA0 and how is it quoted?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at the time of quote — submit an inquiry for a firm offer."},{"question":"What compliance documentation does Siemens provide for this MCCB?","answer":"The SENTRON 3VA2 series carries IEC 60947-2 certification; the ETU350 trip unit is UL 489 listed. RoHS and REACH declarations are standard with the shipment."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2340-8HN32-0AA0","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/3VA2340-8HN32-0AA0 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}}