{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2340-5JQ32-0JL0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2340-5JQ32-0JL0","canonicalUrl":"https://aoctrl.com/siemens/3VA2340-5JQ32-0JL0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2340-5JQ32-0JL0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2340-5JQ32-0JL0, molded case circuit breaker, 3-pole, 400 A, 187 kA at 240 V, ETU560 electronic trip unit, line protection.","salesMarkdown":"## 400 A MCCB with 187 kA interrupting capacity — selectivity anchor for high-fault panels Its headline interrupting ratings — 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 17 kA at 690 V — mean this breaker can clear a bolted fault at those levels without rupturing, which is the deciding factor for main or feeder positions in high-capacity distribution switchboards where upstream transformer impedance is low. It does not include an undervoltage release or phase failure detection, so those functions must be added externally if required. Rated at 400 A from 40 °C through 50 °C ambient, the breaker derates to 375 A at 55 °C, 350 A at 60 °C, 325 A at 65 °C, and 300 A at 70 °C. The 110 mm depth, 138 mm width, and 248 mm height fit standard MCCB mounting footprints; verify the busbar connection centers against the existing panel layout. Maximum power loss is 96 W, which contributes to the enclosure heat load — account for this when sizing ventilation or cooling for a multi-breaker lineup.","metaTitle":"Siemens 3VA2340-5JQ32-0JL0 SENTRON MCCB, 400 A, 187 kA at 24","metaDescription":"Siemens SENTRON 3VA2340-5JQ32-0JL0 molded case circuit breaker, 400 A rated continuous current, 187 kA breaking capacity at 240 V AC. Active production, available to order against","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"110 mm","Width":"138 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":"3","Product version":"Line protection","Voltage trigger":"Yes","lifecycle_stage":"current","Product brand name":"SENTRON","Product designation":"Molded case circuit breaker","Latching - endurance":"15 000","Undervoltage Release":"No","Communication Function":"Yes","Phase failure detection":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","Power loss [W] / maximum":"96 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":"3VA2340-5JQ32-0AA0","Design of the auxiliary release":"Shunt trip (STL)","Ground fault monitoring version":"Summation current formation L-conductor","Of The Integrated Auxiliary Trip":"3VA9688-0BL32","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":"Yes","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=412976&mlfb=3VA2340-5JQ32-0JL0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2340-5JQ32-0JL0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA2340-5JQ32-0JL0 and how do I get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Submit an RFQ to receive a firm price and lead-time confirmation."},{"question":"What is the breaking capacity of 3VA2340-5JQ32-0JL0 at different voltages?","answer":"187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 17 kA at 690 V — these ratings govern its use as a main or feeder breaker in high-fault-capacity systems."},{"question":"What is the continuous current rating and how does it derate with temperature?","answer":"Rated 400 A continuous from 40 °C to 50 °C ambient. Derates to 375 A at 55 °C, 350 A at 60 °C, 325 A at 65 °C, and 300 A at 70 °C."},{"question":"What trip unit does this breaker use?","answer":"It uses the ETU560 electronic trip unit, which provides adjustable long-time, short-time, instantaneous, and ground-fault protection curves."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2340-5JQ32-0JL0","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/3VA2340-5JQ32-0JL0 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}}