{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2063-8KQ46-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2063-8KQ46-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2063-8KQ46-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2063-8KQ46-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2063-8KQ46-0AA0, molded case circuit breaker, 4-pole, 63 A continuous, 800 V insulation, line protection design, communication capable.","salesMarkdown":"The Siemens SENTRON 3VA2063-8KQ46-0AA0 is a 4-pole molded case circuit breaker rated for 63 A continuous current at 40 °C through 70 °C — no derating needed across that band, which simplifies panel schedules in warm enclosures. Insulation voltage is rated 800 V, and the interrupting capacity hits 440 kA at 240 V, 330 kA at 415/440 V, 220 kA at 500 V, and 52.5 kA at 690 V. That spread covers most industrial distribution voltages without a second breaker tier. It is designed for line protection — the primary role is feeder or main breaker in a panel, not motor-circuit protection (no integrated overload). Ground-fault monitoring uses summation current formation on L+N, and the unit includes a communication function for integration into a higher-level monitoring system. Four poles in that width is typical for a 63 A frame; verify busbar or lug kit compatibility if replacing an older 3VA1 or 3WL breaker.","metaTitle":"Siemens 3VA2063-8KQ46-0AA0 SENTRON MCCB, 63 A, 4-Pole, 800 V","metaDescription":"Siemens SENTRON 3VA2063-8KQ46-0AA0 molded case circuit breaker, 63 A continuous, 4-pole, 800 V rated insulation voltage, 440 kA at 240 V. Current production. Quoted 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","Maximum":"756 A","Minimum":"95 A","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","Initial Value":"16 A","Trip Indicator":"No","Number Of Poles":"4","Voltage Trigger":"No","lifecycle_stage":"current","Full-Scale Value":"63 A","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Undervoltage Release":"No","Design Of The Product":"Line protection","Communication Function":"Yes","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":"Yes","Ground-Fault Monitoring Version":"Summation current formation L + N conductor","Continuous Current / Rated Value":"63 A","Insulation Voltage / Rated Value":"800 V","Design Of The Overcurrent Release":"ETU860","protection class IP / on the front":"IP40","design of the N-conductor protection":"adjustable OFF; 40% to 160%","Product Function / Grounding Protection":"Yes","operating voltage / at AC / rated value":"690 V","reference code / according to IEC 81346-2":"Q","Continuous Current / Rated Value / Maximum":"100 A","Product Extension / Optional / Motor Drive":"Yes","Protection Function Of The Overcurrent Release":"LSIG","number of CO contacts / for auxiliary contacts":"0","Switching Capacity Class Of The Circuit Breaker":"L","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"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/fd52d5e175e402ca658046072984bba4.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=389622&mlfb=3VA2063-8KQ46-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2063-8KQ46-0AA0/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional second-source for 3VA2063-8KQ46-0AA0?","answer":"The closest peer is 3VA2063-8JQ42-0AA0 — same 63 A, 4-pole SENTRON frame. The 8JQ42 lacks the communication function and ground-fault monitoring (summation current) that the 8KQ46 includes. If those features are not required, the 8JQ42 is a direct mechanical fit; if they are, the 8KQ46 is the only correct variant."},{"question":"How do I get current pricing and availability for 3VA2063-8KQ46-0AA0?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Submit an RFQ to confirm current pricing and availability — no stock or lead-time figures are published here."},{"question":"Will 3VA2063-8KQ46-0AA0 drop into a panel specified around 3VA2063-8JQ42-0AA0 without rewiring?","answer":"Yes — both share the same SENTRON 3VA2 frame dimensions (181 x 140 x 86 mm) and 4-pole busbar pitch. The wiring footprint is identical; the only difference is the communication and ground-fault monitoring circuitry on the 8KQ46. No rewiring needed for the power path."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2063-8KQ46-0AA0","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/3VA2063-8KQ46-0AA0 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}}