{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2463-5JQ32-0AC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2463-5JQ32-0AC0","canonicalUrl":"https://aoctrl.com/siemens/3VA2463-5JQ32-0AC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2463-5JQ32-0AC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2463-5JQ32-0AC0, molded case circuit breaker, 3-pole, 630 A at 40 °C, line protection, 187 kA breaking capacity at 240 V, 110 mm depth, 138 mm width, 248 mm height.","salesMarkdown":"It's a 3-pole unit rated 630 A at 40 °C, with an adjustable thermal-magnetic trip that ranges from 126 A to 630 A full-scale — so you set the pickup to match the downstream load, not the other way around. At 415 V and 440 V it still holds 121 kA; at 690 V it drops to 9 kA — that's the voltage's effect on arc extinction, not a defect. ## Thermal derating — don't ignore it The 630 A rating is only valid at 40 °C ambient inside the enclosure. At 45 °C it's 600 A; at 50 °C, 570 A; at 60 °C, 510 A; at 70 °C, 450 A. If your panel runs hot — and most do, especially with multiple breakers ganged — you need to apply this derating curve or the breaker will nuisance-trip on a load it should carry. The maximum power loss is 162 W, so factor that into your enclosure ventilation calculation. The 3VA2463-5JQ32-0AC0 measures 248 mm tall, 138 mm wide, and 110 mm deep. Verify the cutout dimensions against your existing panel layout; the width is the critical dimension for multi-breaker rows.","metaTitle":"Siemens 3VA2463-5JQ32-0AC0 SENTRON MCCB, 630 A, 3-Pole, Line","metaDescription":"Siemens 3VA2463-5JQ32-0AC0 SENTRON molded case circuit breaker, 630 A at 40 °C, 3-pole, 187 kA at 240 V. Active production. Quoted to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"110 mm","Width":"138 mm","Height":"248 mm","Maximum":"5 670 A","Minimum":"945 A","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]":"5.43 in","Height [In]":"9.76 in","Initial Value":"126 A","Trip Indicator":"No","Number Of Poles":"3","Voltage Trigger":"No","lifecycle_stage":"current","Full-Scale Value":"630 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":"162 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Of The Supplied Basic Switch":"3VA2463-5JQ32-0AA0","Design Of The Auxiliary Switch":"2 auxiliary switches HQ","Design Of The Auxiliary Release":"Without auxiliary release","Ground-Fault Monitoring Version":"Summation current formation L-conductor","Continuous Current / Rated Value":"630 A","Insulation Voltage / Rated Value":"800 V","Design Of The Overcurrent Release":"ETU560","protection class IP / on the front":"IP40","design of the N-conductor protection":"adjustable OFF; 20% 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":"630 A","Product Extension / Optional / Motor Drive":"Yes","Protection Function Of The Overcurrent Release":"LSIG","number of CO contacts / for auxiliary contacts":"2","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AA12","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"}},"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=789&mlfb=3VA2463-5JQ32-0AC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2463-5JQ32-0AC0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA2463-5JQ32-0AC0 and how do I get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."},{"question":"What is the breaking capacity of this MCCB at different voltages?","answer":"At 240 V it's 187 kA; at 415 V and 440 V it's 121 kA; at 500 V it's 75.6 kA; at 690 V it's 9 kA. The voltage dependency is normal for air-break MCCBs."},{"question":"What is the ambient temperature derating for the 630 A rating?","answer":"At 40 °C it's 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. Apply this curve to avoid nuisance tripping in a warm enclosure."},{"question":"What compliance documentation does this brand provide for 3VA2463-5JQ32-0AC0?","answer":"As a Siemens SENTRON product, it carries CE marking for the European market and is designed to meet IEC 60947-2. RoHS and REACH compliance documentation is available from Siemens on request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2463-5JQ32-0AC0","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/3VA2463-5JQ32-0AC0 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}}