{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2340-6KP32-0KH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2340-6KP32-0KH0","canonicalUrl":"https://aoctrl.com/siemens/3VA2340-6KP32-0KH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2340-6KP32-0KH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2340-6KP32-0KH0, molded case circuit breaker, 3-pole, 400 A (at 40 °C), ETU850 electronic trip unit, 242 kA breaking capacity at 240 V, line protection version.","salesMarkdown":"The 3-pole frame is rated for an insulation voltage Ui of 800 V and delivers breaking capacities from 242 kA at 240 V down to 40 kA at 690 V. ## Thermal derating — where the 400 A holds and where it drops At 55 °C it derates to 375 A, at 60 °C to 350 A, at 65 °C to 325 A, and at 70 °C to 300 A. ## Breaking capacity across voltages — selectivity planning The interrupting ratings span the common industrial voltage bands: 242 kA at 240 V, 187 kA at 415 V and 440 V, 121 kA at 500 V, and 40 kA at 690 V. For a 480 V distribution panel (common in North America) the relevant figure is the 440 V rating at 187 kA — that is well above typical available fault current for most secondary substations, so you have headroom for selective coordination downstream. At 690 V, the 40 kA rating still covers most industrial motor-control-center faults. The MCCB measures 248 mm high, 138 mm wide, and 110 mm deep — a 3-pole frame that fits standard Siemens 3VA switchboard and panelboard mounting patterns. Power loss is 96 W maximum, so account for that heat in the enclosure thermal calculation. ## Integrated auxiliary and trip options Communication function and other measurement functions are present — the ETU850 supports Modbus RTU communication for power monitoring and trip data. There is no undervoltage release or phase-failure detection on this specific configuration.","metaTitle":"Siemens 3VA2340-6KP32-0KH0 SENTRON MCCB, 400 A, ETU850","metaDescription":"Siemens 3VA2340-6KP32-0KH0 SENTRON molded case circuit breaker, 400 A rated at 40 °C, ETU850 electronic trip, 242 kA at 240 V. Active production. Quoted 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":"138 mm","Height":"248 mm","at 240 V":"242 kA","at 415 V":"187 kA","at 440 V":"187 kA","at 500 V":"121 kA","at 690 V":"40 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 HQ","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"Yes","Rated continuous current Iu":"400 A","Rated insulation voltage Ui":"800 V","Of The Supplied Basic Switch":"3VA2340-6KP32-0AA0","Design of the auxiliary release":"Shunt trip (STL)","Ground fault monitoring version":"Without","Of The Integrated Auxiliary Trip":"3VA9688-0BL33","Design of the overcurrent release":"ETU850","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 / 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","Neutral conductors / upgradeable/retrofittable":"Yes","Number of CO contacts / for auxiliary contacts":"3","Protective function of the overcurrent release":"LSI","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB12","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","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=228602&mlfb=3VA2340-6KP32-0KH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2340-6KP32-0KH0/alternatives.json"},"ai":{"faq":[{"question":"What is 3VA2340-6KP32-0KH0's rated current and how does temperature affect it?","answer":"The rated continuous current is 400 A from 40 °C to 50 °C ambient. It 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 breaking capacity does this MCCB have at 480 V?","answer":"At 440 V (the nearest standard rating to 480 V) it interrupts 187 kA. At 500 V it is rated for 121 kA."},{"question":"Where can I buy 3VA2340-6KP32-0KH0 and how is it quoted?","answer":"This part is sourced through independent industrial-automation distribution. Submit an RFQ for current pricing and availability — quotes are confirmed at the time of request."},{"question":"What is the physical size of 3VA2340-6KP32-0KH0?","answer":"It is 248 mm high, 138 mm wide, and 110 mm deep — a standard 3-pole MCCB frame."},{"question":"Does this breaker include communication capability?","answer":"Yes, the ETU850 trip unit supports communication functions (Modbus RTU) and other measurement functions for power monitoring."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2340-6KP32-0KH0","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/3VA2340-6KP32-0KH0 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}}