{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2040-8JQ36-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2040-8JQ36-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2040-8JQ36-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2040-8JQ36-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2040-8JQ36-0AA0, molded case circuit breaker, 3-pole, 40 A continuous, adjustable trip range 60-480 A, with ground-fault monitoring and communication function.","salesMarkdown":"The Siemens SENTRON 3VA2040-8JQ36-0AA0 is a 3-pole molded case circuit breaker (MCCB) rated for 40 A continuous current, with an adjustable thermal-magnetic trip unit covering 60 A to 480 A — meaning you set the instantaneous pickup to match the inrush of your motor or transformer load, not a fixed value. Short-circuit breaking capacity reaches 440 kA at 240 V, 330 kA at 415/440 V, 220 kA at 500 V, and 52.5 kA at 690 V — figures that give selectivity headroom in high-fault panel feeds without cascading upstream breakers. A built-in communication function and summation-current ground-fault monitoring make this breaker panel-network-ready for remote trip indication and leakage detection, saving a separate ground-fault relay and its wiring. ## Sizing and trip coordination The adjustable trip range from 60 A to 480 A lets this single frame cover multiple load sizes — set low for a 60 A feeder or cranked up for a 480 A motor circuit — reducing SKUs on the shelf. Rated insulation voltage is 800 V, so the breaker is suitable for 480/277 V and 600 V panels with margin; the 40 A continuous rating holds flat from 40 °C through 70 °C ambient (–), no derating needed in a warm enclosure. The 86 mm depth, 105 mm width, and 181 mm height (–) match the SENTRON 3VA2 frame footprint; if you are swapping from an older 5SQ2370-2YA05 series breaker, verify the mounting hole pattern and bus-bar spacing — the 3VA2 uses a different accessory interface. Operating temperature range of -25 °C to 70 °C (–) and storage from -40 °C to 80 °C (–) cover unheated warehouses and outdoor enclosures; maximum power loss is 1.2 W, negligible for thermal budgeting.","metaTitle":"Siemens 3VA2040-8JQ36-0AA0 SENTRON MCCB, 40 A, 60-480 A trip","metaDescription":"Siemens SENTRON 3VA2040-8JQ36-0AA0 molded case circuit breaker, 40 A continuous, adjustable trip 60-480 A. SCCR 440 kA at 240 V. 3-pole with ground-fault monitoring. Quoted to orde","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":"No","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":"ETU560","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/709b82aa73b9e858f327d392d9d93a11.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=274909&mlfb=3VA2040-8JQ36-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2040-8JQ36-0AA0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA2040-8JQ36-0AA0 and get a price?","answer":"This part is available to quote against an RFQ through our independent distribution network. Submit a request for current pricing and availability — confirmed at quote time."},{"question":"What are the key ratings of 3VA2040-8JQ36-0AA0?","answer":"40 A continuous current, adjustable trip range 60–480 A, 3-pole, SCCR 440 kA at 240 V and 330 kA at 415/440 V, with ground-fault monitoring and communication function."},{"question":"Will 3VA2040-8JQ36-0AA0 fit in a panel designed for 5SQ2370-2YA05?","answer":"The 3VA2 frame has different mounting and accessory interfaces than the older 5SQ2370 series. Check the bus-bar spacing and DIN-rail clip position before direct swap; the 86 mm depth and 105 mm width are similar, but the accessory slot layout changed."},{"question":"What compliance documentation does Siemens provide for this MCCB?","answer":"Siemens SENTRON breakers typically carry IEC 60947-2 certification, UL 489 listing, and CE marking. RoHS and REACH declarations are available from the manufacturer's documentation portal."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2040-8JQ36-0AA0","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/3VA2040-8JQ36-0AA0 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}}