{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2450-6KQ42-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2450-6KQ42-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2450-6KQ42-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2450-6KQ42-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2450-6KQ42-0AA0, molded case circuit breaker, 4-pole, 500 A, 242 kA at 240 V, ETU860 electronic trip unit, ground-fault monitoring, IP40 front.","salesMarkdown":"## What this 500 A MCCB delivers It carries a continuous current Iu of 500 A at 40 °C, with full 500 A rating holding through 50 °C — no derating needed in a typical 40 °C panel ambient. Breaking capacity is the headline: 242 kA at 240 V, 187 kA at 415 V and 440 V, 121 kA at 500 V, and 9 kA at 690 V. The ETU860 electronic trip unit handles overcurrent protection with ground-fault monitoring via summation current formation on L + N. Communication function is built in, so you can integrate status and trip data into a BMS or plant SCADA without an add-on module.","metaTitle":"Siemens 3VA2450-6KQ42-0AA0 SENTRON MCCB, 500 A, 4-Pole, 242","metaDescription":"Siemens SENTRON 3VA2450-6KQ42-0AA0 molded case circuit breaker, 500 A, 4-pole, 242 kA at 240 V. ETU860 release, ground-fault monitoring. Current lifecycle. Quoted to order.","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","title":"3VA2450-6KQ42-0AA0","Height":"248 mm","at 240 V":"242 kA","at 415 V":"187 kA","at 440 V":"187 kA","at 500 V":"121 kA","at 690 V":"9 kA","at 40 °C":"500 A","at 45 °C":"500 A","at 50 °C":"500 A","at 55 °C":"477 A","at 60 °C":"455 A","at 65 °C":"432 A","at 70 °C":"410 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 H Icu=85kA @ 415V 4-pole, line protection ETU860, LSIG, In=500A overload protection Ir=200A...500A short-circuit protection Isd=0.6..10x In, Ii=1.5..14x 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","Limited To 1 S":"6 kA","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":"99 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"Yes","Courant permanent assigné Iu":"500 A","Ground-Fault Monitoring Version":"Summation current formation L + N conductor","Tension assignée d'isolement Ui":"800 V","Design Of The Overcurrent Release":"ETU860","protection class IP / on the front":"IP40","reference code / acc. to IEC 81346-2":"Q","at AC / limited to 0.5 s / rated value":"6 kA","Product Extension / Optional / Motor Drive":"Yes","Adjustable response value current / lg max.":"500 A","Adjustable response value current / lg min.":"100 A","Adjustable response value current / li max.":"7 000 A","Adjustable response value current / li min.":"750 A","Neutral conductors / upgradeable/retrofittable":"No","Protection Function Of The Overcurrent Release":"LSIG","number of CO contacts / for auxiliary contacts":"0","Switching Capacity Class Of The Circuit Breaker":"H","Max. rated operational current of the frame size":"630 A","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,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/6417819f01694f3f12bd524da691e8ae.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=255444&mlfb=3VA2450-6KQ42-0AA0"},"ai":{"faq":[{"question":"What is the breaking capacity of this MCCB at 415 V?","answer":"187 kA at 415 V, which also holds at 440 V. At 240 V it reaches 242 kA, at 500 V it's 121 kA, and at 690 V it's 9 kA."},{"question":"What trip unit does 3VA2450-6KQ42-0AA0 use?","answer":"The ETU860 electronic overcurrent release, with ground-fault monitoring via summation current on L + N. It also includes a communication function for remote status."},{"question":"Where can I buy 3VA2450-6KQ42-0AA0?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"Does this breaker include ground-fault protection?","answer":"Yes, the ETU860 release provides ground-fault monitoring using summation current formation on the L + N conductors."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2450-6KQ42-0AA0","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/3VA2450-6KQ42-0AA0 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}}