{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2340-7HL42-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2340-7HL42-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2340-7HL42-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2340-7HL42-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2340-7HL42-0AA0, molded case circuit breaker, line protection, 4 poles, rated continuous current Iu 400 A, interrupting rating 330 kA at 240 V, ETU320 release, IP40 front.","salesMarkdown":"The Siemens SENTRON 3VA2340-7HL42-0AA0 is a 4-pole molded case circuit breaker (MCCB) rated for line protection, with a continuous current Iu of 400 A and an interrupting capacity of 330 kA at 240 V. The interrupting rating drops to 242 kA at 415 V and 440 V, 187 kA at 500 V, and 7.5 kA at 690 V — figures that define the available fault current the breaker can safely clear at each voltage level, critical for selectivity coordination studies. The ETU320 electronic trip unit provides adjustable long-time pickup and delay (tr min. 0.5 s, tr max. 17 s) and configurable N-conductor protection (OFF, 50%, 100%). Above that, derating applies: 385 A at 55 °C, 370 A at 60 °C, 355 A at 65 °C, and 340 A at 70 °C. For panel builders, this means the MCCB can be installed in a 50 °C enclosure without downsizing the frame; above that, the load current must be reduced or ventilation added. ## Physical Dimensions and Panel Fit Dimensions: 248 mm high, 184 mm wide, 110 mm deep. The 4-pole width (184 mm) is the key panel-space constraint — verify that the DIN-rail or mounting-plate allocation matches this footprint. The IP40 front protection allows use in enclosed switchgear; no washdown rating.","metaTitle":"Siemens 3VA2340-7HL42-0AA0 SENTRON MCCB, 400 A, 4-Pole, 330","metaDescription":"Siemens SENTRON 3VA2340-7HL42-0AA0 molded case circuit breaker, 400 A rated continuous current, 4 poles, 330 kA interrupting at 240 V. Active production. 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":"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]":"4.3 in","Width [in]":"7.2 in","Height [in]":"9.8 in","Number of poles":"4","Product version":"Line protection","lifecycle_stage":"current","Product brand name":"SENTRON","Product designation":"Molded case circuit breaker","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","Rated continuous current Iu":"400 A","Rated insulation voltage Ui":"800 V","Ground fault monitoring version":"Without","Design of the overcurrent release":"ETU320","Protection class IP / on the front":"IP40","Design of the N-conductor protection":"adjustable OFF; 50%; 100%","Reference code / acc. to DIN EN 81346-2":"Q","Adjustable response value time / tr max.":"17","Adjustable response value time / tr min.":"0.5","Product extension / optional / motor drive":"Yes","Adjustable response value current / lg min.":"400 A","Adjustable response value current / li max.":"4 000 A","Adjustable response value current / li min.":"600 A","Neutral conductors / upgradeable/retrofittable":"No","Number of CO contacts / for auxiliary contacts":"0","Protection Function Of The Overcurrent Release":"LI","Switching capacity class of the circuit breaker":"C","Max. rated operational current of the frame size":"400 A","Max. rated operational voltage Ue with AC 50/60Hz":"690 V","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=173801&mlfb=3VA2340-7HL42-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2340-7HL42-0AA0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA2340-7HL42-0AA0 and how do I get a price?","answer":"The part is sourced and quoted to order against an RFQ through independent distribution. Submit an RFQ for current availability and pricing; no stock count or price is listed here."},{"question":"What is 3VA2340-7HL42-0AA0's listed depth?","answer":"The depth is 110 mm (4.3 in)."},{"question":"What is 3VA2340-7HL42-0AA0's listed width?","answer":"The width is 184 mm (7.2 in)."},{"question":"What compliance documentation does this brand provide for 3VA2340-7HL42-0AA0?","answer":"The evidence does not list specific compliance certificates (RoHS, REACH, UL, IEC) for this order code. For audit purposes, the manufacturer's standard declarations for the SENTRON series are typically available on request; confirm with the supplier at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2340-7HL42-0AA0","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/3VA2340-7HL42-0AA0 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}}