{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2063-8HM46-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2063-8HM46-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2063-8HM46-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2063-8HM46-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2063-8HM46-0AA0, molded case circuit breaker, 4-pole, 63 A, line protection, ETU330 overcurrent release, 440 kA at 240 V, IP40 front.","salesMarkdown":"The Siemens SENTRON 3VA2063-8HM46-0AA0 is a 4-pole molded case circuit breaker (MCCB) rated for line protection, carrying a continuous current Iu of 63 A across the full ambient range from 40 °C up to 70 °C — no derating needed in a warm panel. Its interrupting capacity hits 440 kA at 240 V and still delivers 330 kA at 415 V and 440 V, so it handles high-fault utility feeds or transformer-secondaries without cascading upstream breakers. Front-face protection is IP40, meaning tools or fingers won't accidentally contact live terminals during operation; the enclosure itself is not sealed for washdown. ## Ground-fault and communication This variant includes ground-fault monitoring via summation current formation on L + N conductors — useful for detecting leakage on solidly-grounded systems without a separate GF relay. There is no communication module onboard (no voltage trigger, no trip indicator, no undervoltage release), so it's a straightforward line-protection device with no auxiliary wiring beyond the power circuit.","metaTitle":"Siemens 3VA2063-8HM46-0AA0 SENTRON MCCB, 63 A, 4-Pole, 440 k","metaDescription":"Siemens SENTRON 3VA2063-8HM46-0AA0 molded case circuit breaker, 63 A, 4-pole, line protection, ETU330 release. Breaking capacity 440 kA at 240 V. IP40 front. 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":"140 mm","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":"52.5 kA","at 40 °C":"63 A","at 45 °C":"63 A","at 50 °C":"63 A","at 55 °C":"63 A","at 60 °C":"63 A","at 65 °C":"63 A","at 70 °C":"63 A","Depth [In]":"3.39 in","Width [In]":"5.51 in","Height [In]":"7.13 in","Trip Indicator":"No","Number Of Poles":"4","Product version":"Line protection","Voltage Trigger":"No","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Undervoltage Release":"No","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"3 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Courant permanent assigné Iu":"63 A","Ground-Fault Monitoring Version":"Summation current formation L + N conductor","Tension assignée d'isolement Ui":"800 V","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 IEC 81346-2":"Q","Product Extension / Optional / Motor Drive":"Yes","Adjustable response value current / lg max.":"63 A","Adjustable response value current / lg min.":"16 A","Adjustable response value current / li max.":"756 A","Adjustable response value current / li min.":"95 A","Neutral conductors / upgradeable/retrofittable":"No","Protection Function Of The Overcurrent Release":"LIG","number of CO contacts / for auxiliary contacts":"0","Switching Capacity Class Of The Circuit Breaker":"L","Max. rated operational current of the frame size":"100 A","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","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/fd5a77a9070abf5e87edf202f7ca9af4.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=140132&mlfb=3VA2063-8HM46-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2063-8HM46-0AA0/alternatives.json"},"ai":{"faq":[{"question":"Will 3VA2063-8HM46-0AA0 drop into a panel specified around 3VA2063-8JQ42-0AA0 without rewiring?","answer":"Both share the same SENTRON 3VA frame dimensions (140 mm wide, 181 mm tall, 86 mm deep) and 4-pole format, so the physical fit and busbar connection are identical. The difference is in the trip unit and accessories — the 8HM46 carries the ETU330 electronic release with ground-fault summation, while the 8JQ42 uses a different release variant. Check the trip curve and auxiliary requirements before swapping."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2063-8HM46-0AA0","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/3VA2063-8HM46-0AA0 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}}