{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2040-8HM36-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2040-8HM36-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2040-8HM36-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2040-8HM36-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2040-8HM36-0AA0, molded case circuit breaker, 3-pole, 40 A, ETU330 electronic trip unit, line protection, 440 kA breaking capacity at 240 V.","salesMarkdown":"Three poles, line-protection version, fitted with the ETU330 electronic trip unit. Breaking capacity hits 440 kA at 240 V, 330 kA at 415/440 V, and still holds 53 kA at 690 V, so it handles high-fault utility feeds without cascading upstream. ## Trip unit and selectivity The ETU330 electronic release gives adjustable long-time delay (tr) from 0.5 s to 17 s, letting you coordinate downstream breakers for selective tripping — critical on a distribution panel where you want the branch breaker to clear before the main. Power loss is only 1.2 W maximum, so heat buildup in a dense cabinet is minimal. An optional motor drive can be added for remote tripping or re-closing.","metaTitle":"Siemens 3VA2040-8HM36-0AA0 SENTRON MCCB, 40A, 3-Pole, ETU330","metaDescription":"Siemens 3VA2040-8HM36-0AA0 SENTRON molded case circuit breaker, 40 A rated, 3-pole, ETU330 release, 440 kA at 240 V. Active production. Sourced to order.","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","title":"3VA2040-8HM36-0AA0","Height":"181 mm","at 240 V":"440 kA","at 415 V":"330 kA","at 440 V":"330 kA","at 500 V":"220 kA","at 690 V":"53 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]":"3.4 in","Width [in]":"4.1 in","Height [in]":"7.1 in","description":"circuit breaker 3VA2 IEC frame 100 breaking capacity class L Icu=150kA @ 415V 3-pole, line protection ETU330, LIG, In=40A overload protection Ir=16A...40A short-circuit protection Ii=1.5...12 x In ground-fault protection Ig=0.4... 1 x In, tg=0.1/0.3s clamp connection","Number of poles":"3","Product version":"Line protection","lifecycle_stage":"current","Product brand name":"SENTRON","Product designation":"Molded case circuit breaker","Latching - endurance":"20 000","Communication Function":"No","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":"-40 °C","Other Measurement Function":"No","Rated continuous current Iu":"40 A","Rated insulation voltage Ui":"800 V","Ground fault monitoring version":"Summation current formation L-conductor","Design of the overcurrent release":"ETU330","Protection class IP / on the front":"IP40","Reference code / acc. to DIN EN 81346-2":"Q","Adjustable response value time / tr max.":"17","Adjustable response value time / tr min.":"0.5","Product extension / optional / motor drive":"Yes","Adjustable response value current / Ir max.":"40 A","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","Adjustable response value current / lr min.":"16 A","Adjustable response value current / tg max.":"0.3 s","Adjustable response value current / tg min.":"0.1 s","Ground fault protection can be switched ON/OFF":"No","Neutral conductors / upgradeable/retrofittable":"No","Number of CO contacts / for auxiliary contacts":"0","Protective function of the overcurrent release":"LIG","Switching capacity class of the circuit breaker":"L","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,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/dbfb7370c670211e96a7f62be34ea016.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=512904&mlfb=3VA2040-8HM36-0AA0"},"ai":{"faq":[{"question":"What is the breaking capacity of 3VA2040-8HM36-0AA0 at 240 V?","answer":"440 kA at 240 V, 330 kA at 415 V and 440 V, 220 kA at 500 V, and 53 kA at 690 V."},{"question":"What trip unit does this MCCB use?","answer":"The ETU330 electronic trip unit with adjustable long-time delay from 0.5 s to 17 s."},{"question":"Where can I buy 3VA2040-8HM36-0AA0 and how is it quoted?","answer":"Sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time."},{"question":"Will 3VA2040-8HM36-0AA0 drop into a panel specified around 3VA2040-8HN42-0AA0?","answer":"Both are 3-pole SENTRON MCCBs in the same 3VA2 frame, so the mounting footprint and bus-bar centers are identical — no rewiring needed for the drop-in. The difference is in the trip unit and accessory configuration, not the mechanical fit."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2040-8HM36-0AA0","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/3VA2040-8HM36-0AA0 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}