{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2340-6KP32-0AE0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2340-6KP32-0AE0","canonicalUrl":"https://aoctrl.com/siemens/3VA2340-6KP32-0AE0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2340-6KP32-0AE0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2340-6KP32-0AE0, molded case circuit breaker, 3-pole, 400 A, ETU850 electronic trip, 242 kA at 240 V, line protection version, 110 x 138 x 248 mm.","salesMarkdown":"## What this 400 A MCCB delivers — and the decisions it drives The trip unit is programmable and the breaker carries a communication function, so it integrates into a power-monitoring or selective-coordination scheme rather than sitting as a standalone thermal-magnetic device. ## Breaking capacity across voltages — where the 242 kA matters The interrupting ratings drop as voltage rises: 242 kA at 240 V, 187 kA at both 415 V and 440 V, 121 kA at 500 V, and 40 kA at 690 V. That 40 kA at 690 V is still a solid figure for a 400 A frame — it clears faults on 690 V industrial networks without cascading to upstream gear. ## Thermal derating — the real-world current you can carry 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. The 110 mm depth is the installed projection from the mounting surface, so verify clearance to the enclosure door or busbar shroud. Four HQ auxiliary switches are factory-integrated; no separate aux block to wire in the field.","metaTitle":"Siemens 3VA2340-6KP32-0AE0 SENTRON MCCB, 400 A, 242 kA","metaDescription":"Siemens SENTRON 3VA2340-6KP32-0AE0 molded case circuit breaker, 400 A rated, 242 kA breaking at 240 V, ETU850 electronic trip, current lifecycle. Available 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","title":"3VA2340-6KP32-0AE0","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","description":"circuit breaker 3VA2 IEC frame 400 breaking capacity class H Icu=85kA @ 415V 3-pole, line protection ETU850, LSI, In=400A overload protection Ir=160A...400A short-circuit protection Isd=0.6...10 x In, Ii=1.5 x In N conductor protection optionally with external current transformer, up to 160% nut keeper kit 4 auxiliary switches HQ","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":"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":"4 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":"3VA2340-6KP32-0AA0","Design of the auxiliary release":"Without auxiliary release","Ground fault monitoring version":"Without","Of The Integrated Auxiliary Trip":"3VA9608-0BB11","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":"4","Protective function of the overcurrent release":"LSI","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AA12","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,"stockQuantity":0,"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=55939&mlfb=3VA2340-6KP32-0AE0"},"ai":{"faq":[{"question":"Where can I buy 3VA2340-6KP32-0AE0 and what is the lead time?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — send the quantity for a firm lead-time commitment."},{"question":"What does the ETU850 trip unit do on this breaker?","answer":"The ETU850 is an electronic trip unit that provides adjustable long-time, short-time, instantaneous, and ground-fault protection curves — programmable for selective coordination downstream."},{"question":"Will 3VA2340-6KP32-0AE0 drop into a panel specified around 5SQ2370-2YA01?","answer":"No — the 5SQ2370-2YA01 is a different manufacturer's MCCB with different mounting centers, busbar connection pattern, and accessory layout. The 3VA2340-6KP32-0AE0 requires the SENTRON 3VA mounting plate and busbar system; rewiring and re-termination are needed for a swap."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2340-6KP32-0AE0","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/3VA2340-6KP32-0AE0 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}