{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2140-6KP42-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2140-6KP42-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2140-6KP42-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2140-6KP42-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2 molded case circuit breaker, 4-pole, 40 A rated continuous current (Iu), ETU850 electronic trip unit, breaking capacity 242 kA at 240 V AC, line protection version, current lifecycle.","salesMarkdown":"The Siemens 3VA2140-6KP42-0AA0 is a SENTRON molded case circuit breaker rated for 40 A continuous current (Iu) across the full ambient range from 40 °C to 70 °C — no derating needed up to that ceiling. Four poles, line protection version, with the ETU850 electronic trip unit. Breaking capacity hits 242 kA at 240 V AC, 187 kA at 415 V and 440 V, 121 kA at 500 V, and 3.8 kA at 690 V. That 242 kA figure at 240 V means it handles the highest available fault currents on a 240 V secondary without upstream coordination worries — it's sized for the worst-case short-circuit at the main distribution board. Communication function is built in — the ETU850 supports data exchange for power monitoring and trip-event logging. Power loss maxes at 1.6 W, negligible for panel thermal budgeting. Dimensions are 181 mm high, 140 mm wide, 86 mm deep. The 140 mm width is a standard 4-pole MCCB footprint — it drops into the same mounting cutout as other SENTRON 3VA2 4-pole frames. Operating temperature range is -40 °C to 70 °C, storage from -40 °C to 80 °C — fine for unheated electrical rooms or outdoor cabinets with heaters.","metaTitle":"Siemens 3VA2140-6KP42-0AA0 SENTRON MCCB, 40 A, 4-Pole, 242 k","metaDescription":"Siemens 3VA2140-6KP42-0AA0 SENTRON molded case circuit breaker, 40 A rated, 4-pole, 242 kA breaking at 240 V. ETU850 release. 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":"86 mm","Width":"140 mm","title":"3VA2140-6KP42-0AA0","Height":"181 mm","at 240 V":"242 kA","at 415 V":"187 kA","at 440 V":"187 kA","at 500 V":"121 kA","at 690 V":"3.8 kA","at 40 °C":"40 A","at 45 °C":"40 A","at 50 °C":"40 A","at 55 °C":"40 A","at 60 °C":"40 A","at 65 °C":"40 A","at 70 °C":"40 A","Depth [in]":"3.4 in","Width [in]":"5.5 in","Height [in]":"7.1 in","description":"circuit breaker 3VA2 IEC frame 160 breaking capacity class H Icu=85kA @ 415V 4-pole, line protection ETU850, LSI, In=40A overload protection Ir=16A...40A short-circuit protection Isd=0.6..10x In, Ii=1.5..12x In N conductor protection adjustable (OFF, up to 160%) nut keeper kit","Number of poles":"4","Product version":"Line protection","lifecycle_stage":"current","Product brand name":"SENTRON","Product designation":"Molded case circuit breaker","Latching - endurance":"20 000","Communication Function":"Yes","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","Power loss [W] / maximum":"1.6 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-40 °C","Other Measurement Function":"Yes","Rated continuous current Iu":"40 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; 40% bis160%","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.":"40 A","Adjustable response value current / li max.":"480 A","Adjustable response value current / li min.":"60 A","Adjustable response value current / lr min.":"16 A","Adjustable response value current / Isd max.":"400 A","Adjustable response value current / Isd min.":"24 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":"160 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/cda978e31ec81fb539d5632cb59bd0b3.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=341718&mlfb=3VA2140-6KP42-0AA0"},"ai":{"faq":[{"question":"Where can I buy 3VA2140-6KP42-0AA0 and get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Submit an RFQ for current pricing and availability — confirmed at quote time."},{"question":"What is the breaking capacity of 3VA2140-6KP42-0AA0 at 240 V?","answer":"242 kA at 240 V AC — that's the highest short-circuit rating in the 3VA2 line for this frame size, suitable for main distribution boards with high available fault current."},{"question":"Does 3VA2140-6KP42-0AA0 have communication capability?","answer":"Yes, the ETU850 trip unit includes a communication function for power monitoring and event logging."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2140-6KP42-0AA0","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/3VA2140-6KP42-0AA0 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}}