{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2340-5KP32-0DC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2340-5KP32-0DC0","canonicalUrl":"https://aoctrl.com/siemens/3VA2340-5KP32-0DC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2340-5KP32-0DC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2340-5KP32-0DC0 molded case circuit breaker, 3-pole, 400 A, with ETU850 electronic trip unit, 187 kA breaking capacity at 240 V AC.","salesMarkdown":"## 400 A line protection with ETU850 trip unit The Siemens 3VA2340-5KP32-0DC0 is a 3-pole SENTRON molded case circuit breaker rated for 400 A continuous current (at 40–50 °C) and configured for line protection. It carries the ETU850 electronic trip unit, which supports communication functions and an undervoltage release — meaning this breaker can be integrated into a monitored power distribution system where remote tripping or status feedback is required, not just a standalone overcurrent cutout. Rated short-circuit breaking capacity reaches 187 kA at 240 V AC, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 17 kA at 690 V. At 690 V the 17 kA rating still covers most industrial motor-circuit faults. ## Thermal derating and ambient range 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. For a panel builder sizing this into a high-ambient enclosure — near a furnace line or a hot motor control center — the derating curve is the figure that determines whether the breaker can carry the load without nuisance tripping. Maximum power loss is 98.5 W, which factors into enclosure cooling calculations. Physical envelope: 248 mm height, 138 mm width, 110 mm depth. ## Auxiliary and trip configuration Includes 2 auxiliary switches (HQ type) and an integrated undervoltage release (UVR). The auxiliary release design is the undervoltage release. No voltage trigger, no phase failure detection, and no ground fault monitoring are fitted on this variant. The trip indicator is not present — status is read via the communication interface or auxiliary contacts.","metaTitle":"Siemens 3VA2340-5KP32-0DC0 SENTRON MCCB, 400 A, 187 kA at 24","metaDescription":"Siemens 3VA2340-5KP32-0DC0 SENTRON molded case circuit breaker, 400 A rated current, 187 kA breaking at 240 V, ETU850 trip unit. Active production. Sourced to order against RFQ.","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":"No","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":"Yes","Communication Function":"Yes","Phase failure detection":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","Power loss [W] / maximum":"98.5 W","Auxiliary contact version":"2 auxiliary switches 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":"Undervoltage release (UVR)","Ground fault monitoring version":"Without","Of The Integrated Auxiliary Trip":"3VA9608-0BB25","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":"2","Protective function of the overcurrent release":"LSI","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AA12","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=211171&mlfb=3VA2340-5KP32-0DC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2340-5KP32-0DC0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy the 3VA2340-5KP32-0DC0 and what is the lead time?","answer":"The 3VA2340-5KP32-0DC0 is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What is the closest functional second-source to the 3VA2340-5KP32-0DC0?","answer":"No official second-source or cross-reference is recorded for this part. The 3VA2340-5KP32-0DC0 is the active variant for the 400 A line-protection role with ETU850."},{"question":"What are the key ratings of the 3VA2340-5KP32-0DC0?","answer":"Rated continuous current 400 A (up to 50 °C), breaking capacity 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, 17 kA at 690 V. Three poles, ETU850 trip unit, undervoltage release, communication function."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2340-5KP32-0DC0","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/3VA2340-5KP32-0DC0 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}}