{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2450-6KP42-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2450-6KP42-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2450-6KP42-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2450-6KP42-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2450-6KP42-0AA0, molded case circuit breaker, 4-pole, 500 A rated continuous current Iu, ETU850 electronic overcurrent release, line protection version, 242 kA breaking capacity at 240 V, 187 kA at 415 V, 85 kA at 440 V.","salesMarkdown":"The Siemens 3VA2450-6KP42-0AA0 is a SENTRON molded case circuit breaker (MCCB) rated for 500 A continuous current at 40 °C, with full 500 A hold through 50 °C before derating to 477 A at 55 °C, 455 A at 60 °C, 432 A at 65 °C, and 410 A at 70 °C — so in a warm enclosure you lose about 5 % per 5 °C above 50 °C. The 4-pole design with adjustable N-conductor protection (OFF, 20 % to 100 %) means it handles both 3-phase and 3-phase-plus-neutral distribution without a separate neutral breaker. Breaking capacity is the headline: 242 kA at 240 V, 187 kA at 415 V, 85 kA at 440 V, 55 kA at 500 V, and 9 kA at 690 V. Mechanical endurance is 15,000 operations, which is typical for a 500 A frame in distribution duty — not a frequent-switching motor-starting role. Communication function is onboard (the 6KP42-0AA0 suffix signals the communication-ready variant), so it can report status and trip events to a higher-level system without an external module. Dimensions: 248 mm high, 184 mm wide, 110 mm deep (9.8 x 7.2 x 4.3 inches). The 184 mm width is the 4-pole frame — three poles plus switched neutral — so it occupies the same panel cutout as other 3VA2 4-pole breakers. Mounting is via four screws to the rear panel or onto a mounting plate; no DIN-rail clip on this frame size. Leave clearance above and below for arc-chute exhaust and cable bending radius. Power loss is 99 W maximum at rated current.","metaTitle":"Siemens 3VA2450-6KP42-0AA0 SENTRON MCCB, 500 A, 4-pole, ETU8","metaDescription":"Siemens 3VA2450-6KP42-0AA0 SENTRON molded case circuit breaker, 500 A rated, 4-pole, ETU850 release, 242 kA at 240 V. Active 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":"110 mm","Width":"184 mm","title":"3VA2450-6KP42-0AA0","Height":"248 mm","at 240 V":"242 kA","at 415 V":"187 kA","at 440 V":"85 kA","at 500 V":"55 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]":"4.3 in","Width [in]":"7.2 in","Height [in]":"9.8 in","description":"circuit breaker 3VA2 IEC frame 630 breaking capacity class H Icu=85kA @ 415V 4-pole, line protection ETU850, LSI, 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%) nut keeper kit","Limited To 1 S":"6 kA","Number of poles":"4","Product version":"Line protection","lifecycle_stage":"current","Limited To 0.5 S":"6 kA","Product brand name":"SENTRON","Product designation":"Molded case circuit breaker","Latching - endurance":"15 000","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":"-40 °C","Other Measurement Function":"Yes","Rated continuous current Iu":"500 A","Rated insulation voltage Ui":"800 V","Ground fault monitoring version":"Without","Design of the overcurrent release":"ETU850","Protection class IP / on the front":"IP40","Design of the N-conductor protection":"adjustable OFF; 20% bis100%","Reference code / acc. to DIN EN 81346-2":"Q","Adjustable response value time / tr max.":"20","Adjustable response value time / tr min.":"0.5","Adjustable response value time / tsd max.":"0.5 s","Adjustable response value time / tsd min.":"0.05 s","Product extension / optional / motor drive":"Yes","Adjustable response value current / Ir max.":"500 A","Adjustable response value current / li max.":"7 000 A","Adjustable response value current / li min.":"750 A","Adjustable response value current / lr min.":"200 A","Adjustable response value current / Isd max.":"5 000 A","Adjustable response value current / Isd min.":"300 A","Neutral conductors / upgradeable/retrofittable":"No","Number of CO contacts / for auxiliary contacts":"0","Protective function of the overcurrent release":"LSI","Switching capacity class of the circuit breaker":"H","Max. rated operational current of the frame size":"630 A","Max. rated operational voltage Ue with AC 50/60Hz":"690 V","Type of electrical connection / for main current circuit":"Lug terminal","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/7ea3ed8eeeb632ba8c3ba5875153af1b.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=28488&mlfb=3VA2450-6KP42-0AA0"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2450-6KP42-0AA0","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/3VA2450-6KP42-0AA0 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}}