{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2340-0KQ32-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2340-0KQ32-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2340-0KQ32-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2340-0KQ32-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2340-0KQ32-0AA0, molded case circuit breaker, 3-pole, 400 A continuous, ETU860 electronic trip unit, 440 kA breaking capacity at 415 V.","salesMarkdown":"## SENTRON 3VA2 MCCB — 400 A, 440 kA, ETU860 The ETU860 gives you adjustable L (long-time), S (short-time), I (instantaneous), and G (ground-fault) protection curves, plus a communication function for remote monitoring and settings adjustment. ## Derating and thermal management Above that, it derates linearly: 375 A at 55 °C, 350 A at 60 °C, 325 A at 65 °C, and 300 A at 70 °C. Maximum power loss is 96 W, which matters for enclosure heat rise calculations when you stack multiple breakers side by side. Front IP40 protection covers the operator interface. The ETU860 supports communication, so you can pull trip data and settings over the network rather than walking the panel. Ground-fault monitoring uses summation current formation on the L conductors. ## Adjustable trip range and N protection The breaker's adjustable trip range spans 600 A to 4800 A — that's the instantaneous magnetic pickup, not the continuous rating. The N-conductor protection is configurable from OFF up to 160% in steps, which lets you match the neutral to the phase protection on 4-wire systems without an extra device.","metaTitle":"Siemens 3VA2340-0KQ32-0AA0 SENTRON MCCB, 400 A, 440 kA","metaDescription":"Siemens SENTRON 3VA2340-0KQ32-0AA0 molded case circuit breaker, 400 A continuous, 440 kA at 415 V, ETU860 electronic trip, 3-pole. Current lifecycle. Sourced to order against RFQ.","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","Maximum":"4 800 A","Minimum":"600 A","at 415 V":"440 kA","at 690 V":"187 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]":"4.33 in","Width [In]":"5.43 in","Height [In]":"9.76 in","Initial Value":"80 A","Trip Indicator":"No","Number Of Poles":"3","Voltage Trigger":"No","lifecycle_stage":"current","Full-Scale Value":"400 A","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Undervoltage Release":"No","Design Of The Product":"Line protection","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","Ground-Fault Monitoring Version":"Summation current formation L-conductor","Continuous Current / Rated Value":"400 A","Insulation Voltage / Rated Value":"800 V","Design Of The Overcurrent Release":"ETU860","protection class IP / on the front":"IP40","design of the N-conductor protection":"adjustable OFF; 20% to 160%","Product Function / Grounding Protection":"Yes","operating voltage / at AC / rated value":"690 V","reference code / according to IEC 81346-2":"Q","Continuous Current / Rated Value / Maximum":"400 A","Product Extension / Optional / Motor Drive":"Yes","Protection Function Of The Overcurrent Release":"LSIG","number of CO contacts / for auxiliary contacts":"0","Switching Capacity Class Of The Circuit Breaker":"E","Mechanical Service Life (Operating 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"}},"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=1417863&mlfb=3VA2340-0KQ32-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2340-0KQ32-0AA0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA2340-0KQ32-0AA0 and get a price?","answer":"This breaker is sourced to order through independent distribution. Submit an RFQ — availability and current pricing are confirmed at quote time, not from a shelf count."},{"question":"What are the key ratings for 3VA2340-0KQ32-0AA0?","answer":"400 A continuous current, 440 kA breaking capacity at 415 V, 187 kA at 690 V, ETU860 electronic trip unit with adjustable LSI and ground-fault protection. Full 400 A up to 50 °C, then derates to 300 A at 70 °C."},{"question":"What compliance documentation is available for this MCCB?","answer":"As a Siemens SENTRON product, it carries CE marking for the European market and is designed to meet IEC 60947-2. RoHS and REACH compliance declarations are standard from the manufacturer. Specific UL listing status should be confirmed against the nameplate variant."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2340-0KQ32-0AA0","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/3VA2340-0KQ32-0AA0 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}}