{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2340-7HN32-0AC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2340-7HN32-0AC0","canonicalUrl":"https://aoctrl.com/siemens/3VA2340-7HN32-0AC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2340-7HN32-0AC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2340-7HN32-0AC0, molded case circuit breaker, 3-pole, 400 A rated continuous current, line protection design, 330 kA interrupting capacity at 240 VAC.","salesMarkdown":"Breaking capacity drops as voltage climbs: 330 kA at 240 V, 242 kA at 415 V and 440 V, 187 kA at 500 V, and 7.5 kA at 690 V. Continuous current holds at 400 A up to 50 °C, then derates to 385 A at 55 °C, 370 A at 60 °C, 355 A at 65 °C, and 340 A at 70 °C. In a hot panel near a transformer or drive, use the 70 °C figure for sizing. ## Auxiliary switch configuration and power loss Maximum power loss is 96 W, which matters for enclosure heat rise calculations. The 138 mm width is the critical panel cutout dimension — verify it clears adjacent breakers or busbar shrouds. Depth of 110 mm includes the arc-chamber volume; leave clearance for outgoing cable bends and the auxiliary switch wiring.","metaTitle":"Siemens SENTRON 3VA2340-7HN32-0AC0 MCCB, 400 A, 3-Pole, 330","metaDescription":"Siemens SENTRON 3VA2340-7HN32-0AC0 molded case circuit breaker, 400 A continuous, 3-pole, 330 kA interrupting at 240 VAC. Active production. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"110 mm","Width":"138 mm","Height":"248 mm","Maximum":"4 000 A","Minimum":"4 000 A","at 240 V":"330 kA","at 415 V":"242 kA","at 440 V":"242 kA","at 500 V":"187 kA","at 690 V":"7.5 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","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","Of The Supplied Basic Switch":"3VA2340-7HN32-0AA0","Design Of The Auxiliary Switch":"2 auxiliary switches HQ","Design Of The Auxiliary Release":"Without auxiliary release","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":"2","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AA12","Switching Capacity Class Of The Circuit Breaker":"C","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=380593&mlfb=3VA2340-7HN32-0AC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2340-7HN32-0AC0/alternatives.json"},"ai":{"faq":[{"question":"What is the interrupting capacity of 3VA2340-7HN32-0AC0 at 415 V?","answer":"242 kA at 415 VAC, same as at 440 VAC. At 240 VAC it's 330 kA, at 500 VAC it's 187 kA, and at 690 VAC it drops to 7.5 kA."},{"question":"Where can I buy 3VA2340-7HN32-0AC0 and get current pricing?","answer":"Sourced and quoted to order against an RFQ through independent distribution; availability and current pricing confirmed at quote time."},{"question":"Does 3VA2340-7HN32-0AC0 include auxiliary switches or an undervoltage release?","answer":"It includes two HQ-type auxiliary switches but no undervoltage release, no ground-fault monitoring, and no communication module."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2340-7HN32-0AC0","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/3VA2340-7HN32-0AC0 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}}