{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2040-6HM46-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2040-6HM46-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2040-6HM46-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2040-6HM46-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA series, molded case circuit breaker, order code 3VA2040-6HM46-0AA0, 40 A rated continuous current, 4-pole, ETU330 electronic trip unit, 242 kA interrupting capacity at 240 V.","salesMarkdown":"## Feeder protection for high-fault panels It carries a 242 kA interrupting capacity at 240 V, dropping to 187 kA at 415 V and 440 V, and 121 kA at 500 V — numbers that put it in main-feeder territory for industrial switchboards where fault currents run high. The ETU330 trip unit gives you adjustable long-time pickup and delay (I²t response time adjustable from 0.5 to 17 seconds), plus selectable N-conductor protection — OFF or 100% of phase rating. That means you can tune it for feeder coordination without swapping trip packs. That simplifies panel layout in hot enclosures or next to transformers. Dimensions: 181 mm height, 140 mm width, 86 mm depth — the 86 mm depth is shallow enough for most 200 mm-deep enclosures without forcing a deeper gland plate. IP40 on the front, so it is protected against tool contact but not washdown; keep it behind a panel door. Four-pole design (/L2/L3/N) with a ground-fault monitoring version using summation current formation on L+N. The N-conductor protection can be switched OFF or set to 100%, which matters when you are feeding a delta-wye transformer or a mixed load where the neutral carries less than the phases. Maximum power loss is 2.2 W — negligible for thermal budgeting inside a panel, but worth noting if you are packing 20+ of these in a row. At 690 V the interrupting capacity drops to 3 kA, so on 690 V systems it is strictly a downstream load-break device, not a main.","metaTitle":"Siemens 3VA2040-6HM46-0AA0 SENTRON MCCB, 40A, 4-Pole, ETU330","metaDescription":"Siemens SENTRON 3VA2040-6HM46-0AA0 molded case circuit breaker, 40A continuous, 4-pole, ETU330 trip unit. 242 kA interrupting at 240 V. Active production, quoted on request.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"86 mm","Width":"140 mm","Height":"181 mm","at 240 V":"242 kA","at 415 V":"187 kA","at 440 V":"187 kA","at 500 V":"121 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]":"3.4 in","Width [in]":"5.5 in","Height [in]":"7.1 in","Number of poles":"4","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":"2.2 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 + N conductor","Design of the overcurrent release":"ETU330","Protection class IP / on the front":"IP40","Design of the N-conductor protection":"adjustable OFF; 100%","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":"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":"https://cdn.aoctrl.com/550c2fb5007e665f0b69a9115937a801.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=320850&mlfb=3VA2040-6HM46-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2040-6HM46-0AA0/alternatives.json"},"ai":{"faq":[{"question":"What is the interrupting capacity of this MCCB at 240 V?","answer":"242 kA at 240 V, dropping to 187 kA at 415 V and 440 V, 121 kA at 500 V, and 3 kA at 690 V."},{"question":"Does the 40 A rating need derating at high ambient temperatures?","answer":"No — the rated continuous current holds at 40 A from 40 °C through 70 °C ambient, with no derating required across that range."},{"question":"Where can I buy the 3VA2040-6HM46-0AA0?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution; availability and current pricing are confirmed at quote time."},{"question":"What trip unit does this breaker use?","answer":"It uses the ETU330 electronic overcurrent release with adjustable long-time pickup and delay (response time from 0.5 to 17 seconds) and selectable N-conductor protection."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2040-6HM46-0AA0","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/3VA2040-6HM46-0AA0 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}}