{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2440-7KP42-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2440-7KP42-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2440-7KP42-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2440-7KP42-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2440-7KP42-0AA0, Molded case circuit breaker, Line protection, 4-pole, 400 A, ETU850 electronic trip unit, breaking capacity 330 kA at 240 V.","salesMarkdown":"It uses the ETU850 electronic trip unit. Breaking capacity is the headline number here: 330 kA at 240 V, 242 kA at 415 V and 440 V, 187 kA at 500 V, and 9 kA at 690 V. It also carries communication and other measurement functions onboard, meaning it can report status and metering data back to a controller — useful for a panel that needs load monitoring without a separate power meter. The N-conductor protection is adjustable from OFF to 20% up to 130%, so it handles 4-wire systems with neutral protection as needed. Dimensions: 248 mm high, 184 mm wide, 110 mm deep. Power loss is 63.3 W maximum at rated current. The ETU850 trip unit allows fine-tuning of the long-time pickup, short-time pickup, and instantaneous settings.","metaTitle":"Siemens SENTRON 3VA2440-7KP42-0AA0 MCCB, 400 A, 4-Pole, ETU8","metaDescription":"Siemens SENTRON 3VA2440-7KP42-0AA0 molded case circuit breaker, 400 A continuous, 4-pole, ETU850 electronic trip unit. Breaking capacity 330 kA at 240 V. Active production. Sourced","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":"3VA2440-7KP42-0AA0","Height":"248 mm","at 240 V":"330 kA","at 415 V":"242 kA","at 440 V":"242 kA","at 500 V":"187 kA","at 690 V":"9 kA","at 40 °C":"400 A","at 45 °C":"400 A","at 50 °C":"400 A","at 55 °C":"376 A","at 60 °C":"352 A","at 65 °C":"324 A","at 70 °C":"300 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 C Icu=110kA @ 415V 4-pole, line protection ETU850, LSI, In=400A overload protection Ir=160A...400A short-circuit protection Isd=0.6..10x In, Ii=1.5..15x In N conductor protection adjustable (OFF, up to 160%) nut keeper kit","Limited To 1 S":"5 kA","Number of poles":"4","Product version":"Line protection","lifecycle_stage":"current","Limited To 0.5 S":"5 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":"63.3 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-40 °C","Other Measurement Function":"Yes","Rated continuous current Iu":"400 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% bis130%","Reference code / acc. to DIN EN 81346-2":"Q","Adjustable response value time / tr max.":"25","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.":"400 A","Adjustable response value current / li max.":"6 000 A","Adjustable response value current / li min.":"600 A","Adjustable response value current / lr min.":"160 A","Adjustable response value current / Isd max.":"4 000 A","Adjustable response value current / Isd min.":"240 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":"C","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/0eb36652ce522f093395d6bd0dd27e34.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=436650&mlfb=3VA2440-7KP42-0AA0"},"ai":{"faq":[{"question":"Does this breaker have communication capability?","answer":"Yes, it has a communication function and other measurement functions onboard, allowing status and metering data reporting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2440-7KP42-0AA0","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/3VA2440-7KP42-0AA0 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}}