{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2063-5KQ42-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2063-5KQ42-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2063-5KQ42-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2063-5KQ42-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2063-5KQ42-0AA0, 4-pole molded case circuit breaker, 63 A rated continuous current, breaking capacity 187 kA at 240 V, ETU860 electronic trip unit, line protection, communication capable.","salesMarkdown":"The Siemens SENTRON 3VA2063-5KQ42-0AA0 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 to 70 °C — no derating needed in a warm panel. The electronic trip unit is an ETU860, which gives you adjustable long-time delay (tr) from 0.5 to 25 seconds and short-time delay (tsd) from 0.05 to 0.5 seconds. That selectivity range lets you coordinate downstream breakers so only the faulted branch opens — a line-down event doesn't take the whole panel. Ground-fault monitoring is built in via summation current on L+N, so you can detect leakage without an external module. Communication is onboard, meaning this breaker can talk to a higher-level control system for remote monitoring and trip-event logging — useful for a plant-floor engineer who wants to know why a feeder tripped without walking the panel. ## Deployment context","metaTitle":"Siemens 3VA2063-5KQ42-0AA0 SENTRON MCCB, 4-pole, 63 A, 187 k","metaDescription":"Siemens 3VA2063-5KQ42-0AA0 SENTRON molded case circuit breaker, 4-pole, 63 A rated continuous current, breaking capacity 187 kA at 240 V. Active production, sourced to order. Reque","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":"187 kA","at 415 V":"121 kA","at 440 V":"121 kA","at 500 V":"76 kA","at 690 V":"3 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]":"3.4 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","Communication Function":"Yes","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","Power loss [W] / maximum":"5.4 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"Yes","Rated continuous current Iu":"63 A","Rated insulation voltage Ui":"800 V","Ground fault monitoring version":"Summation current formation L + N conductor","Design of the overcurrent release":"ETU860","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","Product extension / optional / motor drive":"Yes","Adjustable response value current / Ir max.":"63 A","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","Adjustable response value current / lr min.":"25 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.":"630 A","Adjustable response value current / Isd min.":"38 A","Ground fault protection can be switched ON/OFF":"Yes","Neutral conductors / upgradeable/retrofittable":"No","Number of CO contacts / for auxiliary contacts":"0","Protective function of the overcurrent release":"LSIG","Switching capacity class of the circuit breaker":"M","Max. rated operational current of the frame size":"100 A","Max. rated operational voltage Ue with AC 50/60Hz":"690 V","Mechanical service life (switching cycles) / typical":"20 000","Type of electrical connection / for main current circuit":"on both sides nut keeper kit","Arrangement of electrical connectors / for main current circuit":"Front terminal","Type of connectable conductor cross-section, connection screw, width x thickness , max.":"25 x 8.5 mm","Type of connectable conductor cross-section, connection screw, width x thickness , min.":"13 x 1 mm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/05d05c3a66f2fc160ad59279d8077d5b.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=507545&mlfb=3VA2063-5KQ42-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2063-5KQ42-0AA0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA2063-5KQ42-0AA0 and how do I get a price?","answer":"We source and quote this part to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"Will 3VA2063-5KQ42-0AA0 drop into a panel that was specified around 3VA2063-8JQ42-0AA0 without rewiring?","answer":"Both are 4-pole SENTRON MCCBs in the same frame size, so the physical footprint and mounting are identical. The difference is the trip unit and accessories — verify the ETU860 vs ETU860 variant and any communication module fit before swapping."},{"question":"What is 3VA2063-5KQ42-0AA0's listed depth (86 mm) on this component line?","answer":"The depth is 86 mm (3.4 in), which is standard for the 3VA2 frame."},{"question":"What compliance documentation does this brand provide for 3VA2063-5KQ42-0AA0 (RoHS, REACH, UL, IEC)?","answer":"As a Siemens SENTRON MCCB, it carries the usual CE, UL, and IEC certifications for the class. Specific 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/3VA2063-5KQ42-0AA0","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/3VA2063-5KQ42-0AA0 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}}