{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2340-5KP32-0AH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2340-5KP32-0AH0","canonicalUrl":"https://aoctrl.com/siemens/3VA2340-5KP32-0AH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2340-5KP32-0AH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2340-5KP32-0AH0, molded case circuit breaker, 3-pole, 400 A rated continuous current, ETU850 electronic trip unit, line protection version, 187 kA interrupting at 240 V.","salesMarkdown":"The Siemens SENTRON 3VA2340-5KP32-0AH0 is a 3-pole molded case circuit breaker (MCCB) rated for a continuous current of 400 A at 40 °C, with an ETU850 electronic trip unit configured for line protection. It carries a rated insulation voltage of 800 V and delivers interrupting capacities of 187 kA at 240 V, 121 kA at 415 V, 121 kA at 440 V, 75.6 kA at 500 V, and 17 kA at 690 V — so it can clear high-fault currents across a range of common industrial voltage levels without upstream coordination issues. The 400 A rating holds flat through 50 °C, then derates to 375 A at 55 °C, 350 A at 60 °C, 325 A at 65 °C, and 300 A at 70 °C; that thermal curve matters when the breaker lives in a warm enclosure or near other heat sources. It mounts into a panel or enclosure with the standard SENTRON 3VA footprint — the 138 mm width is a 3-pole frame size that fits the same bus-bar and mounting-hole pattern as other 3VA2 breakers. Front-side IP40 protection means it is suitable for general indoor panel use but not washdown environments. ## What the ETU850 trip unit gives you It includes a trip indicator (mechanical flag) for local fault identification. There is no undervoltage release, no phase-failure detection, and no ground-fault monitoring built into this variant; those functions would require an external module or a different order code.","metaTitle":"Siemens 3VA2340-5KP32-0AH0 SENTRON MCCB, 400 A, 3-Pole, ETU8","metaDescription":"Siemens SENTRON 3VA2340-5KP32-0AH0 molded case circuit breaker, 400 A rated, 3-pole, ETU850 trip unit, 187 kA at 240 V. Current lifecycle. Sourced 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":"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":"No","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":"3VA2340-5KP32-0AA0","Design of the auxiliary release":"Without auxiliary release","Ground fault monitoring version":"Without","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":"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=515951&mlfb=3VA2340-5KP32-0AH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2340-5KP32-0AH0/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3VA2340-5KP32-0AH0?","answer":"This part is sourced to order through independent distribution. Submit an RFQ; pricing and availability are confirmed at quote time."},{"question":"What are the key interrupting ratings for this MCCB?","answer":"It interrupts 187 kA at 240 V, 121 kA at 415 V, 121 kA at 440 V, 75.6 kA at 500 V, and 17 kA at 690 V — covering the full range of industrial supply voltages."},{"question":"What is the continuous current rating and how does it derate with temperature?","answer":"Rated 400 A continuous from 40 °C through 50 °C, then derates to 375 A at 55 °C, 350 A at 60 °C, 325 A at 65 °C, and 300 A at 70 °C."},{"question":"Does this MCCB have communication capability?","answer":"Yes, the ETU850 trip unit includes a communication function for integration with plant monitoring systems."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2340-5KP32-0AH0","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/3VA2340-5KP32-0AH0 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}}