{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2340-7JQ42-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2340-7JQ42-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2340-7JQ42-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2340-7JQ42-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2340-7JQ42-0AA0, 4-pole molded case circuit breaker, 400 A rated continuous current, line protection, ETU560 electronic trip unit, 330 kA breaking capacity at 240 V.","salesMarkdown":"The Siemens SENTRON 3VA2340-7JQ42-0AA0 is a 4-pole molded case circuit breaker rated for 400 A continuous current at 40 °C, with the ETU560 electronic trip unit providing adjustable long-time, short-time, instantaneous, and ground-fault protection. At 690 V the breaking capacity drops to 7.5 kA, which still covers most motor-circuit fault levels at that voltage. Above 50 °C the curve steps down: 375 A at 55 °C, 350 A at 60 °C, 325 A at 65 °C, 300 A at 70 °C. The 248 mm height, 184 mm width, and 110 mm depth fit standard MCCB mounting footprints; the IP40 front protection means the breaker face is protected against solid objects over 1 mm but not against dust ingress — mount inside a sealed enclosure for dusty environments. ## Trip unit and communication capability The ETU560 electronic trip unit supports adjustable long-time pickup (Ir), short-time pickup (Isd) with I²t on/off, instantaneous pickup (Ii), and ground-fault pickup (Ig) with adjustable time delay. The N-conductor protection is adjustable OFF or 20% to 100% of the phase rating — critical for 4-wire systems where the neutral must be protected. Communication function is built in (yes), enabling integration with energy management systems via SENTRON accessories like the COM module.","metaTitle":"Siemens 3VA2340-7JQ42-0AA0 SENTRON MCCB, 400 A, 4-Pole, 330","metaDescription":"Siemens SENTRON 3VA2340-7JQ42-0AA0 molded case circuit breaker, 400 A, 4-pole, line protection, ETU560 trip unit. Breaking capacity 330 kA at 240 V. Active production. Sourced to o","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":"375 A","at 60 °C":"350 A","at 65 °C":"325 A","at 70 °C":"300 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","Latching - endurance":"20 000","Communication Function":"Yes","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","Power loss [W] / maximum":"96 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-40 °C","Other Measurement Function":"No","Rated continuous current Iu":"400 A","Rated insulation voltage Ui":"800 V","Ground fault monitoring version":"Summation current formation L + N conductor","Design of the overcurrent release":"ETU560","Protection class IP / on the front":"IP40","Design of the N-conductor protection":"adjustable OFF; 20% bis100%","Reference code / acc. to DIN EN 81346-2":"Q","Adjustable response value time / tr max.":"17","Adjustable response value time / tr min.":"0.5","Adjustable response value time / tsd max.":"0.5 s","Adjustable response value time / tsd min.":"0.05 s","Product extension / optional / motor drive":"Yes","Adjustable response value current / Ir max.":"400 A","Adjustable response value current / lg max.":"400 A","Adjustable response value current / lg min.":"80 A","Adjustable response value current / li max.":"4 000 A","Adjustable response value current / li min.":"600 A","Adjustable response value current / lr min.":"160 A","Adjustable response value current / tg max.":"0.8 s","Adjustable response value current / tg min.":"0.05 s","Adjustable response value current / Isd max.":"4 000 A","Adjustable response value current / Isd min.":"240 A","Ground fault protection can be switched ON/OFF":"Yes","Neutral conductors / upgradeable/retrofittable":"No","Number of CO contacts / for auxiliary contacts":"0","Protective function of the overcurrent release":"LSIG","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","Type of electrical connection / for main current circuit":"Lug terminal","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=512821&mlfb=3VA2340-7JQ42-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2340-7JQ42-0AA0/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 3VA2340-7JQ42-0AA0 at 240 V?","answer":"The breaking capacity is 330 kA at 240 V, 242 kA at 415 V and 440 V, 187 kA at 500 V, and 7.5 kA at 690 V."},{"question":"Where can I buy 3VA2340-7JQ42-0AA0 and get current pricing?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution; availability and current pricing are confirmed at quote time."},{"question":"What trip unit does 3VA2340-7JQ42-0AA0 use?","answer":"It uses the ETU560 electronic trip unit with adjustable long-time, short-time, instantaneous, and ground-fault protection, plus adjustable N-conductor protection."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2340-7JQ42-0AA0","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/3VA2340-7JQ42-0AA0 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}}