{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2040-7KQ36-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2040-7KQ36-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2040-7KQ36-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2040-7KQ36-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2040-7KQ36-0AA0, 3-pole molded case circuit breaker, 40 A continuous rating, ETU860 electronic trip unit, 330 kA interrupting capacity at 240 V AC.","salesMarkdown":"## What this 40 A MCCB does in a panel The Siemens SENTRON 3VA2040-7KQ36-0AA0 is a 3-pole molded case circuit breaker rated for 40 A continuous current, with no derating required across its full operating range from -25 °C to 70 °C — it holds 40 A at every temperature step from 40 °C through 70 °C, so you don't lose capacity in a warm enclosure. The ETU860 electronic trip unit provides communication functionality, meaning this breaker can report status and trip events over a network — useful for a wind-turbine tower where climbing to read a mechanical flag costs time and risk. Interrupting capacity hits 330 kA at 240 V and 242 kA at 415 V — numbers that let you place this 40 A breaker deep in a high-fault-current distribution without worrying about cascading failure upstream. ## Footprint and mounting","metaTitle":"Siemens 3VA2040-7KQ36-0AA0 SENTRON MCCB, 40 A, 330 kA at 240","metaDescription":"Siemens SENTRON 3VA2040-7KQ36-0AA0 molded case circuit breaker, 40 A continuous, 330 kA interrupting at 240 V. Active production, sourced to order. Request quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"86 mm","Width":"105 mm","Height":"181 mm","at 240 V":"330 kA","at 415 V":"242 kA","at 440 V":"242 kA","at 500 V":"187 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]":"4.13 in","Height [In]":"7.13 in","Trip Indicator":"No","Number Of Poles":"3","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":"1.2 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":"Summation current formation L-conductor","Tension assignée d'isolement Ui":"800 V","Design Of The Overcurrent Release":"ETU860","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 / lg max.":"40 A","Adjustable response value current / lg min.":"16 A","Adjustable response value current / li max.":"480 A","Adjustable response value current / li min.":"60 A","Neutral conductors / upgradeable/retrofittable":"Yes","Protection Function Of The Overcurrent Release":"LSIG","number of CO contacts / for auxiliary contacts":"0","Switching Capacity Class Of The Circuit Breaker":"C","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":"double-sided box terminal","Arrangement Of Electrical Connectors / For Main Current Circuit":"Front terminal","Type of connectable conductor cross-section, round conductor terminal, stranded":"1 x (6-120 mm²)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/be5e1a2af75fab95d91965ca651827d0.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=375191&mlfb=3VA2040-7KQ36-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2040-7KQ36-0AA0/alternatives.json"},"ai":{"faq":[{"question":"What is 3VA2040-7KQ36-0AA0's listed depth?","answer":"The depth is 86 mm, which fits standard panel cutouts for this frame size."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2040-7KQ36-0AA0","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/3VA2040-7KQ36-0AA0 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}}