{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2340-6HL42-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2340-6HL42-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2340-6HL42-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2340-6HL42-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2340-6HL42-0AA0, molded case circuit breaker, line protection, 4-pole, 400 A, ETU320 electronic trip unit, 242 kA at 240 V AC.","salesMarkdown":"Above that, the thermal derating curve steps down: 385 A at 55 °C, 370 A at 60 °C, 355 A at 65 °C, and 340 A at 70 °C — so if your panel runs hot, that 400 A nameplate only holds in a 50 °C or cooler enclosure. The interrupting capacity hits 242 kA at 240 V AC and 187 kA at both 415 V and 440 V, then drops to 121 kA at 500 V and 7.5 kA at 690 V. That 7.5 kA at 690 V tells you this breaker is sized for high-fault 480 V or 600 V class systems, not for 690 V main service. ## ETU320 trip unit and N-conductor protection The overcurrent release is an ETU320 electronic trip unit — that's the base electronic trip in the 3VA2 platform, providing LSI protection curves (long-time, short-time, instantaneous) without ground-fault monitoring. The N-conductor protection is field-adjustable: OFF, 50%, or 100% of the phase rating, which matters for 4-wire systems where the neutral may carry harmonic currents. The breaker measures 184 mm wide by 248 mm tall by 110 mm deep. That 184 mm width for a 4-pole frame is standard for the 3VA2 platform — it needs a full 4-module-wide cutout in the panel gland plate.","metaTitle":"Siemens 3VA2340-6HL42-0AA0 SENTRON MCCB, 400 A, 4-Pole, ETU3","metaDescription":"Siemens SENTRON 3VA2340-6HL42-0AA0 molded case circuit breaker, 400 A rated, 4-pole, ETU320 release, 242 kA at 240 V. Line protection. 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":"184 mm","Height":"248 mm","at 240 V":"242 kA","at 415 V":"187 kA","at 440 V":"187 kA","at 500 V":"121 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","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","Courant permanent assigné Iu":"400 A","Ground-Fault Monitoring Version":"Without","Insulation Voltage / Rated Value":"800 V","Design Of The Overcurrent Release":"ETU320","protection class IP / on the front":"IP40","design of the N-conductor protection":"adjustable OFF; 50%; 100%","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","Neutral conductors / upgradeable/retrofittable":"No","Protection Function Of The Overcurrent Release":"LI","number of CO contacts / for auxiliary contacts":"0","Switching Capacity Class Of The Circuit Breaker":"H","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=30727&mlfb=3VA2340-6HL42-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2340-6HL42-0AA0/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3VA2340-6HL42-0AA0?","answer":"Pricing and availability are confirmed at quote time against an RFQ through independent distribution. Submit an RFQ for current figures."},{"question":"What is 3VA2340-6HL42-0AA0's listed depth?","answer":"The depth is 110 mm (4.33 in), with a width of 184 mm (7.24 in) and height of 248 mm (9.76 in)."},{"question":"What compliance documentation does this brand provide for 3VA2340-6HL42-0AA0?","answer":"As a Siemens SENTRON MCCB, it carries the standard CE marking for the European market and is designed to meet IEC 60947-2. UL and CSA listings are typical for the 3VA2 platform, but specific certification marks should be verified against the nameplate for this exact variant."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2340-6HL42-0AA0","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/3VA2340-6HL42-0AA0 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}}