{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2340-5JQ32-0AF0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2340-5JQ32-0AF0","canonicalUrl":"https://aoctrl.com/siemens/3VA2340-5JQ32-0AF0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2340-5JQ32-0AF0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2340-5JQ32-0AF0, molded case circuit breaker, 3-pole, 400 A, 187 kA at 240 V, line protection, with communication function.","salesMarkdown":"The Siemens 3VA2340-5JQ32-0AF0 is a SENTRON molded case circuit breaker (MCCB) rated 400 A continuous at 40 °C, with a maximum interrupting capacity of 187 kA at 240 V AC. At 415 V it still holds 121 kA, and at 690 V it drops to 7.5 kA, so the voltage-dependent curve governs where you place it in the distribution. Three poles, line-protection design (not motor-protection), with a built-in communication function for remote monitoring or trip-event capture. ## Thermal derating — the real-world current you can actually carry Above that it derates: 375 A at 55 °C, 350 A at 60 °C, 325 A at 65 °C, and 300 A at 70 °C. The maximum power loss at rated load is 96 W, so factor that into your enclosure heat budget. ## Footprint and panel integration That 110 mm depth means it fits standard 200 mm deep enclosures without crowding the gland plate.","metaTitle":"Siemens 3VA2340-5JQ32-0AF0 SENTRON MCCB, 400 A, 187 kA at 24","metaDescription":"Siemens 3VA2340-5JQ32-0AF0 SENTRON molded case circuit breaker, 3-pole, 400 A, 187 kA at 240 V, line protection, current production, available 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","Maximum":"4 000 A","Minimum":"600 A","at 240 V":"187 kA","at 415 V":"121 kA","at 440 V":"121 kA","at 500 V":"75.6 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","Initial Value":"80 A","Trip Indicator":"Yes","Number Of Poles":"3","Voltage Trigger":"No","lifecycle_stage":"current","Full-Scale Value":"400 A","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":"No","Of The Supplied Basic Switch":"3VA2340-5JQ32-0AA0","Design Of The Auxiliary Switch":"1 auxiliary switch + 1 trip alarm switch HQ","Design Of The Auxiliary Release":"Without auxiliary release","Ground-Fault Monitoring Version":"Summation current formation L-conductor","Continuous Current / Rated Value":"400 A","Insulation Voltage / Rated Value":"800 V","Design Of The Overcurrent Release":"ETU560","protection class IP / on the front":"IP40","design of the N-conductor protection":"adjustable OFF; 20% to 160%","Product Function / Grounding Protection":"Yes","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":"LSIG","number of CO contacts / for auxiliary contacts":"2","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB12","Switching Capacity Class Of The Circuit Breaker":"M","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=502325&mlfb=3VA2340-5JQ32-0AF0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2340-5JQ32-0AF0/alternatives.json"},"ai":{"faq":[{"question":"Does 3VA2340-5JQ32-0AF0 have a communication function?","answer":"Yes, it includes a communication function for remote monitoring or trip-event capture."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2340-5JQ32-0AF0","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/3VA2340-5JQ32-0AF0 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}}