{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2340-5HN42-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2340-5HN42-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2340-5HN42-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2340-5HN42-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"SENTRON 3VA2340-5HN42-0AA0, 4-pole molded case circuit breaker, 400 A continuous, ETU350 electronic trip unit, 187 kA at 240 V, 121 kA at 415 V, 110 × 184 × 248 mm.","salesMarkdown":"At 240 V it interrupts 187 kA; at 415 V that drops to 121 kA, and at 690 V to 7.5 kA — so the interrupting capacity is heavily phase-to-phase voltage dependent, and the 690 V figure governs any 690 V line-to-line application. The 400 A rating holds up to 50 °C ambient. Above that, the breaker must be derated: 385 A at 55 °C, 370 A at 60 °C, 355 A at 65 °C, and 340 A at 70 °C. The maximum power loss is 96 W, which contributes to the enclosure thermal load and should be factored into the cabinet cooling calculation. Dimensions are 110 mm deep, 184 mm wide, and 248 mm tall. The SENTRON 3VA series carries IEC/EN 60947-2 certification for molded case circuit breakers. The breaker has no trip indicator and no voltage trigger.","metaTitle":"3VA2340-5HN42-0AA0 SENTRON MCCB, 400 A, 4-Pole, 187 kA at 24","metaDescription":"SENTRON 3VA2340-5HN42-0AA0 molded case circuit breaker, 400 A continuous, 4-pole, ETU350 trip unit. 187 kA at 240 V, 121 kA at 415 V. Active production, sourced to order. RFQ for p","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"110 mm","Width":"184 mm","Height":"248 mm","Maximum":"4 000 A","Minimum":"4 000 A","at 240 V":"187 kA","at 415 V":"121 kA","at 440 V":"121 kA","at 500 V":"75.6 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]":"7.24 in","Height [In]":"9.76 in","Trip Indicator":"No","Number Of Poles":"4","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","design of the N-conductor protection":"adjustable OFF; 50%; 100%","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":"M","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=25867&mlfb=3VA2340-5HN42-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2340-5HN42-0AA0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA2340-5HN42-0AA0 and get a price?","answer":"This part is sourced and quoted to order through independent distribution. Submit an RFQ for current pricing and availability — no stock count or price is published here."},{"question":"What is the interrupting capacity of 3VA2340-5HN42-0AA0 at different voltages?","answer":"At 240 V it interrupts 187 kA, at 415 V and 440 V it interrupts 121 kA, at 500 V it interrupts 75.6 kA, and at 690 V it interrupts 7.5 kA. The 690 V figure is the limiting case for any line-to-line application at that voltage."},{"question":"What is the continuous current rating of 3VA2340-5HN42-0AA0 at elevated ambient temperatures?","answer":"Rated 400 A up to 50 °C. Derate to 385 A at 55 °C, 370 A at 60 °C, 355 A at 65 °C, and 340 A at 70 °C."},{"question":"Will 3VA2340-5HN42-0AA0 drop into a panel specified around 3VA2116-5JP32-0AE0?","answer":"Both are 3VA frame-size breakers sharing the same mounting footprint and busbar pitch, so the 3VA2340-5HN42-0AA0 will physically fit the same panel cutout. However, the 3VA2116-5JP32-0AE0 is a lower-current, 3-pole unit with a different trip unit; verify the continuous current, pole count, and trip curve match your application before substitution."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2340-5HN42-0AA0","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/3VA2340-5HN42-0AA0 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}}