{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2340-5KP32-0KA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2340-5KP32-0KA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2340-5KP32-0KA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2340-5KP32-0KA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2 series, molded case circuit breaker, 3-pole, 400 A continuous rated current, 187 kA interrupting at 240 V, shunt trip release, communication function.","salesMarkdown":"The Siemens SENTRON 3VA2340-5KP32-0KA0 is a 3-pole molded case circuit breaker rated for 400 A continuous current at 40 °C, which is its full-load ampacity in a typical 40 °C panel environment. That 400 A holds steady through 50 °C — at 55 °C you derate to 375 A, at 60 °C to 350 A, at 65 °C to 325 A, and at 70 °C to 300 A. So if your enclosure runs hot, the real-world ampacity drops; size your load accordingly. At 240 V it clears 187 kA — that's a very high figure, sized for large transformer secondaries or heavy industrial service entrances. At 415 V and 440 V it still handles 121 kA, at 500 V it's 75.6 kA, and at 690 V it drops to 7.5 kA. It's designed for line protection (feeder duty), not motor protection, so don't spec it for direct motor starting unless you add a separate overload relay. ## Built-in trip unit and accessories The breaker does include a communication function, so it can report status and accept remote commands over a fieldbus or network, which saves running separate control wires for the shunt trip. The supplied basic switch inside is order code 3VA2340-5KP32-0AA0 — that's the internal switching mechanism. Power loss is listed at a maximum of 96 W, which is the heat the breaker dumps into the enclosure at full rated current; factor that into your panel's thermal budget.","metaTitle":"SENTRON 3VA2340-5KP32-0KA0 Molded Case Breaker, 400 A, 187 k","metaDescription":"SENTRON 3VA2340-5KP32-0KA0 MCCB, 3-pole, 400 A continuous, 187 kA at 240 V, 121 kA at 415 V. Shunt trip release, communication function. Current production. 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":"Yes","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":"Without","Design Of The Auxiliary Release":"shunt trip (STL)","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%","Of The Integrated Auxiliary Trip Unit":"3VA9688-0BL33","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":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=251451&mlfb=3VA2340-5KP32-0KA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2340-5KP32-0KA0/alternatives.json"},"ai":{"faq":[{"question":"What are the physical dimensions of this MCCB?","answer":"Height is 248 mm, width is 138 mm, and depth is 110 mm. That's a standard three-pole SENTRON footprint."},{"question":"Does this breaker include a shunt trip?","answer":"Yes, the auxiliary release is a shunt trip (STL), allowing remote tripping via a control signal. There is no undervoltage release and no ground-fault monitoring on this variant."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2340-5KP32-0KA0","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/3VA2340-5KP32-0KA0 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}}