{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2040-6JQ46-0EG0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2040-6JQ46-0EG0","canonicalUrl":"https://aoctrl.com/siemens/3VA2040-6JQ46-0EG0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2040-6JQ46-0EG0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2040-6JQ46-0EG0, molded case circuit breaker, 4-pole, 40 A, ETU560 electronic release, 187 kA at 415 V, line protection.","salesMarkdown":"The Siemens SENTRON 3VA2040-6JQ46-0EG0 is a 4-pole molded case circuit breaker (MCCB) rated for 40 A continuous current (Iu) at 40 °C, with an ETU560 electronic trip unit that provides adjustable overload and short-circuit protection for line-feeder and distribution applications. The front-face IP40 rating suits it for enclosed panel mounting where tools or fingers won't contact live parts. The 40 A rating holds flat from 40 °C through 50 °C, then derates to 38.5 A at 55 °C, 37 A at 60 °C, 35.5 A at 65 °C, and 34 A at 70 °C. For a panel running at 55 °C ambient, the breaker still carries 38.5 A — enough for a 40 A feeder if the load stays under that. Breaking capacity drops from 242 kA at 240 V to 187 kA at 415 V and 3 kA at 690 V; on a 400 V supply the 187 kA figure governs the SCCR coordination study. ## Integration notes Dimensions are 181 mm high × 140 mm wide × 107 mm deep — a standard 4-pole MCCB footprint for a 160 A frame. The ETU560 release supports communication, so it can report trip events and load data over the SENTRON bus system. The undervoltage release is a UVR(LNO) design with leading NO contacts, which means it drops the breaker on loss of control voltage and signals the open state through the NO contact before the main contacts part. Ground-fault detection uses summation current on L+N conductors.","metaTitle":"Siemens 3VA2040-6JQ46-0EG0 SENTRON MCCB, 40 A, 4-Pole, 187 k","metaDescription":"Siemens SENTRON 3VA2040-6JQ46-0EG0 molded case circuit breaker, 40 A rated, 4-pole, 187 kA at 415 V. ETU560 release, communication capable. Current lifecycle stage, available to or","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"107 mm","Width":"140 mm","Height":"181 mm","at 240 V":"242 kA","at 415 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":"38.5 A","at 60 °C":"37 A","at 65 °C":"35.5 A","at 70 °C":"34 A","Trip indicator":"Yes","Number of poles":"4","Product version":"Line protection","Voltage trigger":"No","lifecycle_stage":"current","Product brand name":"SENTRON","Product designation":"Molded case circuit breaker","Latching - endurance":"20 000","Undervoltage Release":"No","Communication Function":"Yes","Phase failure detection":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","Power loss [W] / maximum":"3 W","Auxiliary contact version":"1 auxiliary switch + 1 trip alarm switch HP","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Rated continuous current Iu":"40 A","Rated insulation voltage Ui":"800 V","Of The Supplied Basic Switch":"3VA2040-6JQ46-0AA0","Design of the auxiliary release":"Undervoltage release with leading NO contacts (UVR(LNO))","Ground fault monitoring version":"Summation current formation L + N conductor","Of The Integrated Auxiliary Trip":"3VA9908-0BC11","Design of the overcurrent release":"ETU560","Protection class IP / on the front":"IP40","Reference code / acc. to DIN EN 81346-2":"Q","Adjustable response value time / tr max.":"25","Adjustable response value time / tr min.":"0.5","Adjustable response value time / tsd max.":"0.5 s","Adjustable response value time / tsd min.":"0.05 s","Undervoltage Release With Leading Contact":"Yes","Product extension / optional / motor drive":"Yes","Adjustable response value current / Ir max.":"1 A","Adjustable response value current / lg max.":"1 A","Adjustable response value current / lg min.":"0.4 A","Adjustable response value current / li min.":"1.5 A","Adjustable response value current / lr min.":"0.4 A","Adjustable response value current / tg max.":"0.8 s","Adjustable response value current / tg min.":"0.05 s","Adjustable response value current / Isd max.":"10 A","Adjustable response value current / Isd min.":"0.6 A","Ground fault protection can be switched ON/OFF":"Yes","Neutral conductors / upgradeable/retrofittable":"No","Number of CO contacts / for auxiliary contacts":"2","Protective function of the overcurrent release":"LSIG","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB11","Switching capacity class of the circuit breaker":"H","Max. rated operational current of the frame size":"100 A","Max. rated operational voltage Ue with AC 50/60Hz":"690 V","Type of electrical connection / for main current circuit":"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":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=398849&mlfb=3VA2040-6JQ46-0EG0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2040-6JQ46-0EG0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA2040-6JQ46-0EG0?","answer":"It is sourced and quoted to order against an RFQ through independent distribution; availability and current pricing are confirmed at quote time."},{"question":"What are the key ratings for 3VA2040-6JQ46-0EG0?","answer":"Rated 40 A continuous (Iu) at 40 °C, 4-pole, with 187 kA breaking capacity at 415 V and an ETU560 electronic trip unit."},{"question":"What is the depth of 3VA2040-6JQ46-0EG0?","answer":"The depth is 107 mm."},{"question":"What is the width of 3VA2040-6JQ46-0EG0?","answer":"The width is 140 mm."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2040-6JQ46-0EG0","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/3VA2040-6JQ46-0EG0 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}}