{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2340-7KP32-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2340-7KP32-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2340-7KP32-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2340-7KP32-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2340-7KP32-0AA0, molded case circuit breaker, 3-pole, 400 A, ETU850 electronic trip unit, line protection version, 690 V AC, breaking capacity 330 kA at 240 V.","salesMarkdown":"The Siemens SENTRON 3VA2340-7KP32-0AA0 is a 3-pole molded case circuit breaker (MCCB) rated for 400 A continuous current at 40 °C, with an ETU850 electronic trip unit. It's the line protection version — meaning it's configured for feeder and main breaker duty, not motor circuit protection. The 400 A rating holds steady from 40 °C up to 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 if you're stuffing this into a hot panel — the 400 A nameplate is only good if your enclosure ambient stays under 50 °C. Breaking capacity runs 330 kA at 240 V AC, 242 kA at 415 V and 440 V, 187 kA at 500 V, and 7.5 kA at 690 V. That's a lot of fault current muscle at the lower voltages — typical for a main breaker on a large secondary substation or a high-capacity industrial feeder. The IP40 front protection means it's fine for a closed panel; no special gasketing needed for the switch handle opening. The ETU850 trip unit supports communication and other measurement functions — so this breaker can talk to a higher-level monitoring system via the SENTRON communication modules. Neutral protection is adjustable from OFF to 20%–160% of the phase current setting. That's useful on 4-wire systems where you need to protect the neutral against harmonic currents.","metaTitle":"Siemens 3VA2340-7KP32-0AA0 SENTRON MCCB, 400 A, 3-Pole, ETU8","metaDescription":"Siemens SENTRON 3VA2340-7KP32-0AA0 molded case circuit breaker. 400 A continuous, 3-pole, ETU850 trip unit. Breaking capacity 330 kA at 240 V. Current production. Quoted to order a","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","at 240 V":"330 kA","at 415 V":"242 kA","at 440 V":"242 kA","at 500 V":"187 kA","at 690 V":"7.5 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","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","Undervoltage Release":"No","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","rated insulation voltage Ui":"800 V","Courant permanent assigné Iu":"400 A","Ground-Fault Monitoring Version":"Without","Design Of The Overcurrent Release":"ETU850","protection class IP / on the front":"IP40","design of the N-conductor protection":"adjustable OFF; 20% to 160%","operating voltage / at AC / rated value":"690 V","reference code / according to IEC 81346-2":"Q","Product Extension / Optional / Motor Drive":"Yes","Adjustable response value current / li max.":"4 000 A","Adjustable response value current / li min.":"600 A","Neutral conductors / upgradeable/retrofittable":"Yes","Protection Function Of The Overcurrent Release":"LSI","number of CO contacts / for auxiliary contacts":"0","Switching Capacity Class Of The Circuit Breaker":"C","Max. rated operational current of the frame size":"400 A","Mechanical Service Life (Switching 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","Type of connectable conductor cross-section, connection screw, width x thickness , max.":"35 x 10 mm","Type of connectable conductor cross-section, connection screw, width x thickness , min.":"20 x 1 mm"}},"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=113838&mlfb=3VA2340-7KP32-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2340-7KP32-0AA0/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings for the 3VA2340-7KP32-0AA0?","answer":"400 A continuous at 40 °C, 3-pole, ETU850 electronic trip unit, rated insulation voltage 800 V, operating voltage 690 V AC. Breaking capacity ranges from 330 kA at 240 V down to 7.5 kA at 690 V."},{"question":"Where can I buy the 3VA2340-7KP32-0AA0?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."},{"question":"What is the physical size of this MCCB?","answer":"248 mm high, 138 mm wide, 110 mm deep. That's a standard 3-pole SENTRON 3VA2 frame footprint."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2340-7KP32-0AA0","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/3VA2340-7KP32-0AA0 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}}