{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2340-5JQ42-0CL0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2340-5JQ42-0CL0","canonicalUrl":"https://aoctrl.com/siemens/3VA2340-5JQ42-0CL0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2340-5JQ42-0CL0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2340-5JQ42-0CL0, molded case circuit breaker, 4-pole, 400 A, line protection, with ETU560 release, undervoltage release, communication function, 187 kA at 240 V.","salesMarkdown":"The Siemens 3VA2340-5JQ42-0CL0 is a 4-pole SENTRON molded case circuit breaker rated for 400 A continuous at 40 °C — line protection version with an ETU560 electronic trip unit. Breaking capacity hits 187 kA at 240 V, 121 kA at 415 V, and still holds 17 kA at 690 V, so it handles high-fault utility feeds or transformer secondaries without cascading upstream. The 184 mm width and 248 mm height fit standard SENTRON panel cutouts; depth is 110 mm. At 55 °C it drops to 375 A, at 60 °C to 350 A, at 65 °C to 325 A, and at 70 °C to 300 A. ## Integration notes Ground-fault monitoring uses summation-current formation on L + N — it measures the vector sum of phase and neutral currents to detect leakage. No phase-failure detection built in; if you need that, it's handled by the ETU or an external relay. Latching endurance is 15,000 operations, which is typical for a distribution breaker not cycled daily.","metaTitle":"Siemens 3VA2340-5JQ42-0CL0 SENTRON MCCB, 400 A, 4-Pole, Line","metaDescription":"Siemens SENTRON 3VA2340-5JQ42-0CL0 molded case circuit breaker, 400 A rated, 4-pole, line protection. Breaking capacity 187 kA at 240 V. Current lifecycle stage, available to order","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"110 mm","Width":"184 mm","Height":"248 mm","at 240 V":"187 kA","at 415 V":"121 kA","at 440 V":"121 kA","at 500 V":"75.6 kA","at 690 V":"17 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","Trip indicator":"Yes","Number of poles":"4","Product version":"Line protection","Voltage trigger":"No","lifecycle_stage":"current","Product brand name":"SENTRON","Product designation":"Molded case circuit breaker","Latching - endurance":"15 000","Undervoltage Release":"Yes","Communication Function":"Yes","Phase failure detection":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","Power loss [W] / maximum":"98.5 W","Auxiliary contact version":"2 auxiliary switches + 1 trip alarm switch + 1 electrical alarm switch HQ","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","Of The Supplied Basic Switch":"3VA2340-5JQ42-0AA0","Design of the auxiliary release":"Undervoltage release (UVR)","Ground fault monitoring version":"Summation current formation L + N conductor","Of The Integrated Auxiliary Trip":"3VA9608-0BB24","Design of the overcurrent release":"ETU560","Protection class IP / on the front":"IP40","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","Undervoltage Release With Leading Contact":"No","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 / 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":"4","Protective function of the overcurrent release":"LSIG","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB22","Switching capacity class of the circuit breaker":"M","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","Type of connectable conductor cross-section, connection screw, width x thickness , max.":"35 x 10","Type of connectable conductor cross-section, connection screw, width x thickness , min.":"20 x 1"}},"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=160638&mlfb=3VA2340-5JQ42-0CL0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2340-5JQ42-0CL0/alternatives.json"},"ai":{"faq":[{"question":"Who supplies 3VA2340-5JQ42-0CL0 and how is it quoted for volume purchases?","answer":"We source it through independent industrial-automation distribution. Submit an RFQ with your target quantity and delivery window; we'll return a firm price and lead time. No minimum order quantity for standard requests."},{"question":"What is the depth of 3VA2340-5JQ42-0CL0?","answer":"Depth is 110 mm. Overall dimensions are 184 mm width by 248 mm height, fitting standard SENTRON panel cutouts."},{"question":"What compliance documentation does this breaker carry?","answer":"As a Siemens SENTRON product, it carries UL, CSA, IEC, and CE certifications for global distribution. RoHS and REACH declarations are available from Siemens. Specific documentation (declaration of conformity, test reports) can be provided upon request with your RFQ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2340-5JQ42-0CL0","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/3VA2340-5JQ42-0CL0 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}}