{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2040-8KQ36-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2040-8KQ36-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2040-8KQ36-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2040-8KQ36-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2040-8KQ36-0AA0, molded case circuit breaker, 3-pole, 40 A rated, 60–480 A trip range, breaking capacity 440 kA at 240 V, line protection design.","salesMarkdown":"The Siemens 3VA2040-8KQ36-0AA0 is a 3-pole SENTRON molded case circuit breaker rated for 40 A continuous current, with a trip-range adjustability from 60 A up to 480 A — so it fits a feeder or main that needs headroom above the 40 A nameplate, not just a fixed 40 A breaker. Breaking capacity is 440 kA at 240 V, 330 kA at 415 V and 440 V, 220 kA at 500 V, and 52.5 kA at 690 V — those numbers mean this breaker can interrupt fault currents at the distribution transformer secondary or a high-capacity bus without cascading upstream. No undervoltage release and no voltage trigger — the breaker is purely current-trip; external UVR or shunt-trip modules would need to be added separately if required by the safety circuit.","metaTitle":"Siemens 3VA2040-8KQ36-0AA0 SENTRON MCCB, 40 A, 3-Pole, 480 A","metaDescription":"Siemens SENTRON 3VA2040-8KQ36-0AA0 molded case circuit breaker, 40 A rated, 3-pole, 60-480 A trip range, breaking capacity 440 kA at 240 V. Active production, quoted to order. Requ","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","Maximum":"480 A","Minimum":"60 A","at 240 V":"440 kA","at 415 V":"330 kA","at 440 V":"330 kA","at 500 V":"220 kA","at 690 V":"52.5 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","Initial Value":"16 A","Trip Indicator":"No","Number Of Poles":"3","Voltage Trigger":"No","lifecycle_stage":"current","Full-Scale Value":"40 A","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":"1.2 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"Yes","Ground-Fault Monitoring Version":"Summation current formation L-conductor","Continuous Current / Rated Value":"40 A","Insulation Voltage / Rated Value":"800 V","Design Of The Overcurrent Release":"ETU860","protection class IP / on the front":"IP40","design of the N-conductor protection":"adjustable OFF; 40% to 160%","Product Function / Grounding Protection":"Yes","operating voltage / at AC / rated value":"690 V","reference code / according to IEC 81346-2":"Q","Continuous Current / Rated Value / Maximum":"100 A","Product Extension / Optional / Motor Drive":"Yes","Protection Function Of The Overcurrent Release":"LSIG","number of CO contacts / for auxiliary contacts":"0","Switching Capacity Class Of The Circuit Breaker":"L","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"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/7216f8dc9767e571c8150208b3c7661e.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=312537&mlfb=3VA2040-8KQ36-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2040-8KQ36-0AA0/alternatives.json"},"ai":{"faq":[{"question":"Will 3VA2040-8KQ36-0AA0 drop into a panel specified around 3VA2040-8HN42-0AA0 without rewiring?","answer":"Both are 3-pole SENTRON MCCBs with the same frame size and terminal layout, so mechanical fit and bus-bar spacing should match — but the 8KQ36 has a 40 A rated current versus whatever the 8HN42 carries, and the trip-range and accessory configuration may differ. Verify the trip settings and auxiliary contact wiring before swapping."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2040-8KQ36-0AA0","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/3VA2040-8KQ36-0AA0 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}}