{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2340-5KP32-0AB0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2340-5KP32-0AB0","canonicalUrl":"https://aoctrl.com/siemens/3VA2340-5KP32-0AB0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2340-5KP32-0AB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2340-5KP32-0AB0, molded case circuit breaker, 400 A, 3-pole, line protection, 187 kA interrupting at 240 V, with communication function.","salesMarkdown":"It carries interrupting ratings of 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 7.5 kA at 690 V — so at the common 400 V class it clears faults up to 121 kA without cascading upstream, which is the figure that governs selectivity coordination in a main or feeder breaker position. ## Thermal derating and continuous current The 400 A rating holds flat up to 50 °C ambient. 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. ## Communication and auxiliary switching It ships with two HP auxiliary switches for status feedback, but no undervoltage release and no ground-fault monitoring. The basic switch variant is 3VA2340-5KP32-0AA0. Maximum power loss is 96 W — account for that in your enclosure thermal budget. No phase-out or last-time-buy notice is available.","metaTitle":"Siemens 3VA2340-5KP32-0AB0 SENTRON MCCB, 400 A, 3-Pole, 187","metaDescription":"Siemens SENTRON 3VA2340-5KP32-0AB0 molded case circuit breaker, 400 A rated, 3-pole, 187 kA interrupting at 240 V. Line protection with communication. Quoted 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","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","Of The Supplied Basic Switch":"3VA2340-5KP32-0AA0","Design Of The Auxiliary Switch":"2 auxiliary switches HP","Design Of The Auxiliary Release":"Without auxiliary release","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":"2","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AA11","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=443625&mlfb=3VA2340-5KP32-0AB0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2340-5KP32-0AB0/alternatives.json"},"ai":{"faq":[{"question":"What are the physical dimensions of this MCCB?","answer":"It measures 248 mm high, 138 mm wide, and 110 mm deep."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2340-5KP32-0AB0","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/3VA2340-5KP32-0AB0 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}}