{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2463-4JQ42-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2463-4JQ42-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2463-4JQ42-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2463-4JQ42-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA series, molded case circuit breaker, 4-pole, 630 A rated continuous current, 121 kA breaking capacity at 240 V AC, line protection design with communication function.","salesMarkdown":"The 630 A frame carries a magnetic trip range from 945 A to 5 670 A — meaning the instantaneous trip threshold is adjustable within that band, so you set it to ride through motor inrush or transformer energization without nuisance tripping. Breaking capacity runs 121 kA at 240 V AC, 75.6 kA at 415/440 V, 52.5 kA at 500 V, and 9 kA at 690 V; that covers most low-voltage distribution bus faults without cascading upstream. The 630 A rating holds only at 40 °C ambient. Above that, derate linearly: 600 A at 45 °C, 570 A at 50 °C, 540 A at 55 °C, 510 A at 60 °C, 480 A at 65 °C, and 450 A at 70 °C. Maximum power loss is 162 W, so factor that into the enclosure thermal budget. ## Ground-fault monitoring and communication This MCCB includes ground-fault monitoring via summation current formation on L + N conductors — it measures the vector sum of line and neutral currents to detect leakage to earth. Communication function is onboard, so it can report status and trip events to a higher-level control system without an add-on module. No undervoltage release or voltage trip fitted on this variant.","metaTitle":"Siemens SENTRON 3VA2463-4JQ42-0AA0 MCCB, 630 A, 4-Pole, 121","metaDescription":"Siemens SENTRON 3VA2463-4JQ42-0AA0 molded case circuit breaker, 630 A continuous, 4-pole, 121 kA breaking at 240 V. Current 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":"184 mm","title":"3VA2463-4JQ42-0AA0","Height":"248 mm","Maximum":"5 670 A","Minimum":"945 A","at 240 V":"121 kA","at 415 V":"75.6 kA","at 440 V":"75.6 kA","at 500 V":"52.5 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","description":"circuit breaker 3VA2 IEC frame 630 breaking capacity class S Icu=36kA @ 415V 4-pole, line protection ETU560, LSIG, In=630A overload protection Ir=250A...630A short-circuit protection Isd=0.6..9 x In, Ii=1.5..9 x In N conductor protection adjustable (OFF, up to 100%) gr.-fault prot., can be sw. off Ig=0.2...1 x In= tg=0.05-0.8s nut keeper kit","Initial Value":"126 A","Trip Indicator":"No","Number Of Poles":"4","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","Ground-Fault Monitoring Version":"Summation current formation L + N 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 100%","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":"0","Switching Capacity Class Of The Circuit Breaker":"S","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,"stockQuantity":0,"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=906689&mlfb=3VA2463-4JQ42-0AA0"},"ai":{"faq":[{"question":"What is the continuous current rating of 3VA2463-4JQ42-0AA0 at 40 °C?","answer":"630 A at 40 °C ambient, derating to 450 A at 70 °C per the thermal curve."},{"question":"What breaking capacity does this MCCB provide at 240 V and 415 V?","answer":"121 kA at 240 V AC and 75.6 kA at 415 V AC, covering most low-voltage distribution fault levels without needing an upstream current-limiting device."},{"question":"Where can I buy 3VA2463-4JQ42-0AA0 and how is it quoted?","answer":"This part is sourced through independent distribution channels and quoted to order against an RFQ. Availability and current pricing are confirmed at quote time — no minimum volume is required to request a quote."},{"question":"Will 3VA2463-4JQ42-0AA0 drop into a panel specified around 3VA2225-5JQ32-0AK0 without rewiring?","answer":"Not directly — the 3VA2463-4JQ42-0AA0 is a 630 A, 4-pole frame with different dimensions (248×184×110 mm) and a higher continuous rating than the 3VA2225-5JQ32-0AK0. Bus bar spacing, lug sizes, and cutout dimensions differ; verify the panel layout before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2463-4JQ42-0AA0","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/3VA2463-4JQ42-0AA0 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}