{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2340-5KP42-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2340-5KP42-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2340-5KP42-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2340-5KP42-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2340-5KP42-0AA0, 4-pole molded case circuit breaker, 400 A continuous current, ETU850 electronic trip unit, 187 kA at 240 V, line protection design with communication function.","salesMarkdown":"Above 50 °C, the thermal curve steps down: 375 A at 55 °C, 350 A at 60 °C, 325 A at 65 °C, and 300 A at 70 °C. That derating profile matters if this breaker sits near other heat sources in a crowded enclosure. At 240 V it interrupts 187 kA; at 415 V and 440 V it holds 121 kA; at 500 V it drops to 75.6 kA; at 690 V it's 7.5 kA. The 7.5 kA at 690 V is still adequate for most 690 V industrial distribution but confirms this breaker is sized for low-voltage main or feeder duty, not 690 V sub-distribution. No undervoltage release or voltage trigger is fitted; ground-fault monitoring is not built in. The 110 mm depth leaves room behind the gland plate for cable bends. The storage minimum matters for unheated warehouses in cold climates — the breaker can sit at -40 °C without damage.","metaTitle":"Siemens 3VA2340-5KP42-0AA0 SENTRON MCCB, 400 A, 187 kA at 24","metaDescription":"Siemens SENTRON 3VA2340-5KP42-0AA0 molded case circuit breaker, 400 A continuous, 4-pole, ETU850 release, 187 kA at 240 V. Quoted to order. Request RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"110 mm","Width":"184 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]":"7.24 in","Height [In]":"9.76 in","Trip Indicator":"No","Number Of Poles":"4","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 100%","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":"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":"$1,056.64","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=3989&mlfb=3VA2340-5KP42-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2340-5KP42-0AA0/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings of 3VA2340-5KP42-0AA0?","answer":"400 A continuous current, 4-pole, ETU850 electronic trip unit, breaking capacity of 187 kA at 240 V, 121 kA at 415 V, 121 kA at 440 V, 75.6 kA at 500 V, and 7.5 kA at 690 V. Insulation voltage rated 800 V."},{"question":"Where can I buy 3VA2340-5KP42-0AA0?","answer":"This part is 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 commercial offer."},{"question":"What is the depth of 3VA2340-5KP42-0AA0?","answer":"The depth is 110 mm. Width is 184 mm, height is 248 mm."},{"question":"Does 3VA2340-5KP42-0AA0 have a communication function?","answer":"Yes, it includes a communication function for integration with monitoring or control systems via the ETU850 trip unit."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2340-5KP42-0AA0","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/3VA2340-5KP42-0AA0 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}}