{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2340-7HN32-0AF0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2340-7HN32-0AF0","canonicalUrl":"https://aoctrl.com/siemens/3VA2340-7HN32-0AF0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2340-7HN32-0AF0","rawCanonicalId":null},"summary":{"shortDescription":"SENTRON 3VA2340-7HN32-0AF0, molded case circuit breaker, 3-pole, 400 A continuous, 330 kA interrupting at 240 V, line protection design.","salesMarkdown":"The SENTRON 3VA2340-7HN32-0AF0 is a 3-pole molded case circuit breaker rated for 400 A continuous current at 40 °C, with a maximum interrupting capacity of 330 kA at 240 V AC. Per the datasheet, the continuous rating holds at 400 A through 50 °C, then derates to 385 A at 55 °C and 340 A at 70 °C — so the thermal curve is what governs real-world panel loading, not the nameplate number. The breaking capacity drops to 242 kA at 415 V and 7.5 kA at 690 V, which means this breaker is sized for high-fault low-voltage distribution, not 690 V motor circuits. It carries a line protection design, meaning the trip curve and thermal-magnetic response are tuned for feeder and main breaker duty rather than motor or generator protection. The basic switch variant is 3VA2340-7HN32-0AA0, which is the thermal-magnetic core without the electronic trip unit or communications. This -0AF0 suffix adds the electronic trip unit with adjustable protections, so the panel wiring and bus bar connections are identical between the two — the swap is in the trip logic, not the mounting.","metaTitle":"3VA2340-7HN32-0AF0 SENTRON MCCB, 400 A, 3-pole, 330 kA at 24","metaDescription":"SENTRON 3VA2340-7HN32-0AF0 molded case circuit breaker, 400 A continuous, 3-pole, 330 kA breaking at 240 V. 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":"Yes","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":"1 auxiliary switch + 1 trip alarm switch 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":"3VA9988-0AB12","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=468274&mlfb=3VA2340-7HN32-0AF0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2340-7HN32-0AF0/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings for 3VA2340-7HN32-0AF0?","answer":"Continuous current is 400 A at 40 °C, derating to 340 A at 70 °C. Interrupting capacity is 330 kA at 240 V, 242 kA at 415 V, and 7.5 kA at 690 V. It is a 3-pole molded case circuit breaker with line protection design."},{"question":"Where can I buy 3VA2340-7HN32-0AF0 and how is it quoted?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — no stock count or price is published here."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2340-7HN32-0AF0","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/3VA2340-7HN32-0AF0 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}}