{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2340-8KP32-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2340-8KP32-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2340-8KP32-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2340-8KP32-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2340-8KP32-0AA0, molded case circuit breaker, 3-pole, 400 A continuous, ETU850 electronic trip unit, 440 kA at 240 V interrupting capacity.","salesMarkdown":"The Siemens SENTRON 3VA2340-8KP32-0AA0 is a 3-pole molded case circuit breaker rated 400 A continuous at 40 °C, built around the ETU850 electronic trip unit. That 400 A holds flat through 50 °C — you only start derating above 55 °C, dropping to 300 A at 70 °C. For a 400 A feeder in a warm enclosure, that thermal headroom matters more than the raw number. Interrupting capacity is 440 kA at 240 V, 330 kA at 415 V, and still 52.5 kA at 690 V. The ETU850 trip unit supports communication, so this breaker can report status and trip events over the plant network — useful for a maintenance team that wants to know which feeder cleared without walking the panel. No undervoltage release and no ground-fault monitoring are fitted as standard; those are add-on options if your coordination study calls for them. Maximum power loss is 96 W. In a sealed enclosure with multiple breakers, that heat needs to be factored into the thermal calculation — especially if you're running near the 70 °C upper operating limit.","metaTitle":"Siemens 3VA2340-8KP32-0AA0 SENTRON MCCB, 400 A, ETU850","metaDescription":"Siemens SENTRON 3VA2340-8KP32-0AA0 molded case circuit breaker, 400 A continuous, ETU850 electronic trip, 440 kA at 240 V. Current production. Sourced to order.","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","Maximum":"4 000 A","Minimum":"600 A","at 240 V":"440 kA","at 415 V":"330 kA","at 440 V":"330 kA","at 500 V":"220 kA","at 690 V":"52.5 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","Voltage Trigger":"No","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Undervoltage Release":"No","Design Of The Product":"Line protection","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","Ground-Fault Monitoring Version":"Without","Continuous Current / Rated Value":"400 A","Insulation Voltage / Rated Value":"800 V","Design Of The Overcurrent Release":"ETU850","protection class IP / on the front":"IP40","design of the N-conductor protection":"adjustable OFF; 20% to 160%","Product Function / Grounding Protection":"No","operating voltage / at AC / rated value":"690 V","reference code / according to IEC 81346-2":"Q","Continuous Current / Rated Value / Maximum":"400 A","Product Extension / Optional / Motor Drive":"Yes","Protection Function Of The Overcurrent Release":"LSI","number of CO contacts / for auxiliary contacts":"0","Switching Capacity Class Of The Circuit Breaker":"L","Mechanical Service Life (Operating 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"}},"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=231411&mlfb=3VA2340-8KP32-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2340-8KP32-0AA0/alternatives.json"},"ai":{"faq":[{"question":"Will 3VA2340-8KP32-0AA0 drop into a panel specified for 3VA2040-8HN42-0AA0?","answer":"Not without checking the frame size and trip unit compatibility. The 3VA2340 is a 400 A frame with an ETU850 electronic trip; the 3VA2040-8HN42-0AA0 is a different frame rating and trip technology. Panel cutouts, bus bar spacing, and wiring may differ — verify the physical dimensions and connection pattern before substitution."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2340-8KP32-0AA0","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/3VA2340-8KP32-0AA0 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}}