{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2463-5KQ42-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2463-5KQ42-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2463-5KQ42-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2463-5KQ42-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2 molded case circuit breaker, 4-pole, 630 A (40 °C), ETU860 electronic trip unit, line protection version, 187 kA at 240 V AC, 110 x 184 x 248 mm.","salesMarkdown":"## What the 187 kA interrupting rating means for your panel The Siemens 3VA2463-5KQ42-0AA0 is a SENTRON 3VA2 molded case circuit breaker (MCCB) rated for line protection, carrying a 630 A continuous current at 40 °C and a 4-pole configuration. Its interrupting capacity hits 187 kA at 240 V AC and 121 kA at 415 V and 440 V AC — numbers that tell you this breaker is built for high-fault utility or industrial service entrances where available fault current is substantial. Ground-fault monitoring uses summation current formation on L + N conductors, and the N-conductor protection is adjustable from OFF to 100% in 20% steps. That level of configurability is what you need for selective coordination downstream of a transformer or generator main. ## Thermal derating — don't spec the 630 A number cold At 50 °C it's 570 A; at 60 °C it's 510 A; at 70 °C it's 450 A. If your panel runs hot — and most do, especially with other breakers and buswork sharing the air — you need to apply the derating curve from the spec table. The 162 W maximum power loss also means ventilation or larger enclosure volume matters; stuffing this into a tight, sealed box without airflow will push internal temperature up and reduce the usable current. Dimensions are 248 mm high, 184 mm wide, 110 mm deep — a 4-pole frame that fits standard SENTRON 3VA2 mounting patterns.","metaTitle":"Siemens 3VA2463-5KQ42-0AA0 SENTRON MCCB, 630 A, 4-Pole, ETU8","metaDescription":"Siemens 3VA2463-5KQ42-0AA0 SENTRON molded case circuit breaker, 630 A at 40 °C, 4-pole, ETU860 release, 187 kA at 240 V. Active production, sourced to order. Request a quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"110 mm","Width":"184 mm","Height":"248 mm","at 240 V":"187 kA","at 415 V":"121 kA","at 440 V":"121 kA","at 500 V":"75.6 kA","at 690 V":"9 kA","at 40 °C":"630 A","at 45 °C":"600 A","at 50 °C":"570 A","at 55 °C":"540 A","at 60 °C":"510 A","at 65 °C":"480 A","at 70 °C":"450 A","Depth [In]":"4.33 in","Width [In]":"7.24 in","Height [In]":"9.76 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":"Yes","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"162 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"Yes","Courant permanent assigné Iu":"630 A","Ground-Fault Monitoring Version":"Summation current formation L + N conductor","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; 20% to 100%","operating voltage / at AC / rated value":"690 V","reference code / according to IEC 81346-2":"Q","Continuous Current / Rated Value / Maximum":"630 A","Product Extension / Optional / Motor Drive":"Yes","Adjustable response value current / lg max.":"630 A","Adjustable response value current / lg min.":"126 A","Protection Function Of The Overcurrent Release":"LSIG","number of CO contacts / for auxiliary contacts":"0","Switching Capacity Class Of The Circuit Breaker":"M","Mechanical Service Life (Operating 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.":"35 x 10 mm","Type of connectable conductor cross-section, connection screw, width x thickness , min.":"20 x 1 mm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/7ff193dd53a0856db1ca969741fab18b.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=389570&mlfb=3VA2463-5KQ42-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2463-5KQ42-0AA0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA2463-5KQ42-0AA0 and how do I get a price?","answer":"We source this MCCB to order against an RFQ. Submit a quote request and we'll confirm availability and current pricing — no stock count or price is published here because both fluctuate with the market."},{"question":"What is 3VA2463-5KQ42-0AA0's interrupting capacity at 240 V?","answer":"187 kA at 240 V AC, dropping to 121 kA at 415 V and 440 V, then 75.6 kA at 500 V, and 9 kA at 690 V."},{"question":"What compliance documentation does this brand provide for 3VA2463-5KQ42-0AA0?","answer":"Siemens SENTRON breakers typically carry IEC 60947-2 certification, UL 489 listing, and CE marking. RoHS and REACH declarations are available from Siemens documentation. Specific certs for this exact order code should be verified against the factory certificate of conformance."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2463-5KQ42-0AA0","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/3VA2463-5KQ42-0AA0 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}}