{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2040-6KP42-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2040-6KP42-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2040-6KP42-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2040-6KP42-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2040-6KP42-0AA0, molded case circuit breaker, 4-pole, 40 A, ETU850 electronic release, line protection, 242 kA at 240 V, IP40 front, with communication function.","salesMarkdown":"The Siemens SENTRON 3VA2040-6KP42-0AA0 is a 4-pole molded case circuit breaker rated 40 A continuous at 40 °C through 70 °C — no derating needed across that span, which simplifies panel thermal budgeting. Its ETU850 electronic release provides line protection with communication capability, so the breaker reports status and trip events to the control system without a separate auxiliary module. Maximum power loss is 2.2 W, which keeps internal cabinet temperature rise negligible.","metaTitle":"Siemens 3VA2040-6KP42-0AA0 SENTRON MCCB, 40 A, 4-Pole, 242 k","metaDescription":"Siemens 3VA2040-6KP42-0AA0 SENTRON molded case circuit breaker, 40 A, 4-pole, 242 kA at 240 V. ETU850 release, communication function. Current lifecycle. Sourced to order against R","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"86 mm","Width":"140 mm","Height":"181 mm","at 240 V":"242 kA","at 415 V":"187 kA","at 440 V":"187 kA","at 500 V":"121 kA","at 690 V":"3 kA","at 40 °C":"40 A","at 45 °C":"40 A","at 50 °C":"40 A","at 55 °C":"40 A","at 60 °C":"40 A","at 65 °C":"40 A","at 70 °C":"40 A","Depth [In]":"3.39 in","Width [In]":"5.51 in","Height [In]":"7.13 in","Trip Indicator":"No","Number Of Poles":"4","Product version":"Line protection","Voltage Trigger":"No","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Undervoltage Release":"No","Communication Function":"Yes","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"2.2 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"Yes","Courant permanent assigné Iu":"40 A","Ground-Fault Monitoring Version":"Without","Tension assignée d'isolement Ui":"800 V","Design Of The Overcurrent Release":"ETU850","protection class IP / on the front":"IP40","reference code / acc. to IEC 81346-2":"Q","Product Extension / Optional / Motor Drive":"Yes","Adjustable response value current / li max.":"480 A","Adjustable response value current / li min.":"60 A","Neutral conductors / upgradeable/retrofittable":"No","Protection Function Of The Overcurrent Release":"LSI","number of CO contacts / for auxiliary contacts":"0","Switching Capacity Class Of The Circuit Breaker":"H","Max. rated operational current of the frame size":"100 A","Mechanical Service Life (Operating Cycles) / Typical":"25 000","Type Of Electrical Connection / For Main Current Circuit":"on both sides nut keeper kit","Arrangement Of Electrical Connectors / For Main Current Circuit":"Front terminal","Type of connectable conductor cross-section, connection screw, width x thickness , min.":"13 x 1 mm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/a2f4b8942ad50f18a0ed53ba0145a8cc.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=105585&mlfb=3VA2040-6KP42-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2040-6KP42-0AA0/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2040-6KP42-0AA0","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/3VA2040-6KP42-0AA0 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}}