{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2340-5JQ42-0DL0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2340-5JQ42-0DL0","canonicalUrl":"https://aoctrl.com/siemens/3VA2340-5JQ42-0DL0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2340-5JQ42-0DL0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2340-5JQ42-0DL0, molded case circuit breaker, 4-pole, 400 A, ETU560 electronic trip unit, line protection, 187 kA at 240 V AC.","salesMarkdown":"It is a line-protection version — meaning it is set up for feeder or main breaker duty, not motor-circuit protection, so the trip curve and accessories are tuned for cable and busbar protection rather than motor starting inrush. The interrupting ratings tell you where this breaker can sit in a fault-current study: 187 kA at 240 V AC, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 17 kA at 690 V. Thermal derating is published per degree: full 400 A up to 50 °C, then 375 A at 55 °C, 350 A at 60 °C, 325 A at 65 °C, and 300 A at 70 °C. The 184 mm width for a 4-pole 400 A frame is standard for this class — check your enclosure gland-plate clearance and phase-barrier spacing before laying out the panel. That gives you status feedback for the SCADA or PLC — one set for breaker open/closed, one for trip indication, and one for electrical alarm. Communication function is built in — the ETU560 supports PROFIBUS or PROFINET via a communication module, letting you read current, power, energy, and trip data remotely. That is useful for a main breaker in a power-monitoring scheme, but confirm the specific module variant for your network protocol.","metaTitle":"Siemens 3VA2340-5JQ42-0DL0 SENTRON MCCB, 400 A, 4-Pole, ETU5","metaDescription":"Siemens 3VA2340-5JQ42-0DL0 SENTRON molded case circuit breaker, 400 A rated, 4-pole, ETU560 trip unit. Interrupting capacity 187 kA at 240 V. Current production. 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":"3VA9608-0BB25","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=147400&mlfb=3VA2340-5JQ42-0DL0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2340-5JQ42-0DL0/alternatives.json"},"ai":{"faq":[{"question":"What are the interrupting ratings of 3VA2340-5JQ42-0DL0 at different voltages?","answer":"187 kA at 240 V AC, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 17 kA at 690 V. These are the maximum fault currents the breaker can safely interrupt at each voltage level."},{"question":"What is the thermal derating curve for this MCCB?","answer":"Rated 400 A continuous up to 50 °C ambient. Above that: 375 A at 55 °C, 350 A at 60 °C, 325 A at 65 °C, and 300 A at 70 °C. The full rating holds in most ventilated indoor panels."},{"question":"What auxiliary contacts and releases are fitted on 3VA2340-5JQ42-0DL0?","answer":"It comes with 2 auxiliary switches, 1 trip alarm switch, and 1 electrical alarm switch (HQ configuration), plus a factory-fitted undervoltage release (UVR). That covers remote status indication and undervoltage protection without needing add-on modules."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2340-5JQ42-0DL0","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/3VA2340-5JQ42-0DL0 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}}