{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2340-7HN32-0BC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2340-7HN32-0BC0","canonicalUrl":"https://aoctrl.com/siemens/3VA2340-7HN32-0BC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2340-7HN32-0BC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2340-7HN32-0BC0, molded case circuit breaker, 3-pole, 400 A rated at 40 °C, 330 kA breaking at 240 V, line protection design with undervoltage release and 2 auxiliary switches HQ.","salesMarkdown":"## 400 A MCCB with 330 kA interrupting capacity The Siemens SENTRON 3VA2340-7HN32-0BC0 is a 3-pole molded case circuit breaker rated for 400 A continuous current at 40 °C ambient, with a maximum breaking capacity of 330 kA at 240 V AC. That interrupting rating drops to 242 kA at 415 V and 440 V, 187 kA at 500 V, and 7.5 kA at 690 V — so the voltage class of your distribution system directly governs which fault level this breaker can clear. The 400 A rating holds through 50 °C; above that, derate to 385 A at 55 °C, 370 A at 60 °C, 355 A at 65 °C, and 340 A at 70 °C. The breaker measures 110 mm deep by 138 mm wide by 248 mm high, which fits standard SENTRON 3VA switchboard cutouts. Mounting and busbar kits are shared across the 3VA2 frame family, so a panel prepped for a 3VA2 frame accepts this unit without re-drilling. The breaker ships with two auxiliary switches HQ (high-quantity contacts) and an undervoltage release (UVR) factory-installed. No voltage-trigger or ground-fault monitoring is included; those are separate order-code variants in the 3VA2 family.","metaTitle":"Siemens 3VA2340-7HN32-0BC0 SENTRON MCCB, 400 A, 3-Pole, 330","metaDescription":"Siemens SENTRON 3VA2340-7HN32-0BC0 molded case circuit breaker, 400 A continuous at 40 °C, 3-pole, 330 kA breaking at 240 V. Line protection with undervoltage release. Available to","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":"Yes","Design Of The Product":"Line protection","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"98.5 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":"undervoltage release (UVR)","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","Of The Integrated Auxiliary Trip Unit":"3VA9608-0BB11","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=421640&mlfb=3VA2340-7HN32-0BC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2340-7HN32-0BC0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA2340-7HN32-0BC0 and get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Submit an RFQ for current availability and pricing — confirmed at quote time, not listed here."},{"question":"What is the closest functional second-source for 3VA2340-7HN32-0BC0?","answer":"The 3VA1110-5ED36-0AC0 is a smaller-frame SENTRON MCCB but does not drop into the same panel cutout or carry the same 400 A / 330 kA rating. The 3VA2340-7HN32-0BC0 is a 3-pole 400 A line-protection breaker with UVR and two auxiliary switches; the 3VA1110 series is a different frame size and rating class. No direct functional equivalent exists without rewiring and re-paneling."},{"question":"What compliance documentation does this breaker carry?","answer":"As a Siemens SENTRON product, it is designed to meet IEC 60947-2 and UL 489 standards for molded case circuit breakers. Specific certification marks (UL, CSA, CE) should be verified against the nameplate on the unit received."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2340-7HN32-0BC0","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/3VA2340-7HN32-0BC0 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}}