{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2340-6KQ32-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2340-6KQ32-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2340-6KQ32-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2340-6KQ32-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2340-6KQ32-0AA0, molded case circuit breaker, 3-pole, 400 A at 40 °C, interrupting capacity 242 kA at 240 V AC, ETU860 electronic trip unit, communication function.","salesMarkdown":"The Siemens SENTRON 3VA2340-6KQ32-0AA0 is a 3-pole molded case circuit breaker rated 400 A continuous at 40 °C, with an interrupting capacity of 242 kA at 240 V AC — that's the headline number for fault-clearing on a 240 V service. At 415 V it still handles 187 kA, and at 690 V the rating drops to 7.5 kA, so the SCCR you design to depends entirely on your line voltage. Communication function is built in, so this breaker talks to a BMS or PLC without an add-on module. The 400 A rating holds from 40 °C through 50 °C; above that it steps down — 375 A at 55 °C, 350 A at 60 °C, 325 A at 65 °C, 300 A at 70 °C. The 3VA2340-6KQ32-0AA0 measures 248 mm high by 138 mm wide by 110 mm deep, which is a standard MCCB footprint for this class. Front IP40 keeps out tools and fingers; the rest of the body is open to the panel air for convection cooling.","metaTitle":"Siemens 3VA2340-6KQ32-0AA0 SENTRON MCCB, 400 A, 242 kA at 24","metaDescription":"Siemens SENTRON 3VA2340-6KQ32-0AA0 molded case circuit breaker, 400 A rated, 242 kA interrupting at 240 V. ETU860 trip unit, communication capable. Current lifecycle stage, sourced","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"110 mm","Width":"138 mm","Height":"248 mm","at 240 V":"242 kA","at 415 V":"187 kA","at 440 V":"85 kA","at 500 V":"55 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]":"5.4 in","Height [In]":"9.8 in","Number Of Poles":"3","Product version":"Line protection","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","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":"-25 °C","Other Measurement Function":"Yes","Courant permanent assigné Iu":"400 A","Ground-Fault Monitoring Version":"Summation current formation L-conductor","Tension assignée d'isolement Ui":"800 V","Design Of The Overcurrent Release":"ETU860","protection class IP / on the front":"IP40","reference code / acc. to IEC 81346-2":"Q","Product Extension / Optional / Motor Drive":"Yes","Adjustable response value current / lg max.":"400 A","Adjustable response value current / lg min.":"0.8 s","Adjustable response value current / li max.":"4 000 A","Adjustable response value current / li min.":"600 A","Adjustable response value current / tg min.":"0.05 s","Ground fault protection can be switched ON/OFF":"Yes","Neutral conductors / upgradeable/retrofittable":"Yes","Protection Function Of The Overcurrent Release":"LSIG","number of CO contacts / for auxiliary contacts":"0","Switching Capacity Class Of The Circuit Breaker":"H","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=484546&mlfb=3VA2340-6KQ32-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2340-6KQ32-0AA0/alternatives.json"},"ai":{"faq":[{"question":"What is the interrupting capacity of this MCCB at different voltages?","answer":"At 240 V it interrupts 242 kA; at 415 V it's 187 kA; at 440 V it's 85 kA; at 500 V it's 55 kA; at 690 V it's 7.5 kA. The rating drops with voltage, so coordinate your system's available fault current against the voltage you actually run."},{"question":"What trip unit does the 3VA2340-6KQ32-0AA0 use?","answer":"It uses the ETU860 electronic trip unit with adjustable long-time pickup (minimum 0.8 s), short-time/instantaneous settings up to 4000 A, and ground-fault monitoring via summation current formation on the L-conductor."},{"question":"Where can I buy 3VA2340-6KQ32-0AA0 and how is it quoted?","answer":"We source it through independent distribution and quote it to order against an RFQ. Availability and current pricing are confirmed at quote time — no stock count or lead-time number published here because those fluctuate."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2340-6KQ32-0AA0","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/3VA2340-6KQ32-0AA0 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}}