{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2140-6HN42-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2140-6HN42-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2140-6HN42-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2140-6HN42-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2140-6HN42-0AA0, molded case circuit breaker, 4-pole, 40 A continuous, ETU350 electronic trip unit, line protection design.","salesMarkdown":"The Siemens SENTRON 3VA2140-6HN42-0AA0 is a 4-pole molded case circuit breaker rated for 40 A continuous current, with no derating across its full ambient range from -25 °C to 70 °C — a flat thermal curve that simplifies panel design in warm enclosures. Its ETU350 electronic trip unit handles line-protection duty with a breaking capacity that starts at 242 kA at 240 V and steps down through 187 kA at 415/440 V, 121 kA at 500 V, to 3.7 kA at 690 V — the high SCCR at the lower voltages means it can serve as a main or branch breaker in high-fault panels without cascading upstream. The 86 mm depth, 140 mm width, and 181 mm height fit the standard SENTRON 3VA footprint, so it mounts into existing panel layouts sized for the series without re-drilling gland plates or re-routing bus bars. ## Integration notes Power loss is 1.6 W maximum, negligible for thermal budgeting inside a multi-breaker panel. Storage range of -40 °C to 80 °C covers shipping and warehouse extremes; the operating range of -25 °C to 70 °C matches the flat 40 A rating.","metaTitle":"Siemens 3VA2140-6HN42-0AA0 SENTRON MCCB, 40 A, 4-Pole, ETU35","metaDescription":"Siemens SENTRON 3VA2140-6HN42-0AA0 molded case circuit breaker. 40 A continuous, 4-pole, ETU350 electronic trip. SCCR 242 kA at 240 V. Current lifecycle stage. Sourced to order aga","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":"3VA2140-6HN42-0AA0","Height":"181 mm","Maximum":"480 A","Minimum":"480 A","at 240 V":"242 kA","at 415 V":"187 kA","at 440 V":"187 kA","at 500 V":"121 kA","at 690 V":"3.7 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]":"3.39 in","Width [In]":"5.51 in","Height [In]":"7.13 in","description":"circuit breaker 3VA2 IEC frame 160 breaking capacity class H Icu=85kA @ 415V 4-pole, line protection ETU350, LSI, In=40A overload protection Ir=16A...40A short-circuit protection Isd=1.5...10 x Ir, Ii=12 x In N conductor protection adjustable (OFF, 100%) nut keeper kit","Trip Indicator":"No","Number Of Poles":"4","Voltage Trigger":"No","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Undervoltage Release":"No","Design Of The Product":"Line protection","Communication Function":"No","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":"-25 °C","Other Measurement Function":"No","Ground-Fault Monitoring Version":"Without","Continuous Current / Rated Value":"40 A","Insulation Voltage / Rated Value":"800 V","Design Of The Overcurrent Release":"ETU350","protection class IP / on the front":"IP40","design of the N-conductor protection":"adjustable OFF; 100%","Product Function / Grounding Protection":"No","operating voltage / at AC / rated value":"690 V","reference code / according to IEC 81346-2":"Q","Continuous Current / Rated Value / Maximum":"160 A","Product Extension / Optional / Motor Drive":"Yes","Protection Function Of The Overcurrent Release":"LSI","number of CO contacts / for auxiliary contacts":"0","Switching Capacity Class Of The Circuit Breaker":"H","Mechanical Service Life (Operating Cycles) / Typical":"25 000","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/cda978e31ec81fb539d5632cb59bd0b3.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=173129&mlfb=3VA2140-6HN42-0AA0"},"ai":{"faq":[{"question":"What is the breaking capacity of 3VA2140-6HN42-0AA0 at 240 V?","answer":"242 kA at 240 V, stepping down to 187 kA at 415/440 V, 121 kA at 500 V, and 3.7 kA at 690 V."},{"question":"Where can I buy 3VA2140-6HN42-0AA0?","answer":"Sourced and quoted to order against an RFQ through independent distribution; availability and current pricing are confirmed at quote time."},{"question":"Will 3VA2140-6HN42-0AA0 drop into a panel specified for 3VA2116-5JP32-0AE0?","answer":"Both are SENTRON 3VA series breakers sharing the same 86 mm depth, 140 mm width, and 181 mm height footprint, so mechanical fit is identical — the difference is in the trip unit and rating, not the mounting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2140-6HN42-0AA0","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/3VA2140-6HN42-0AA0 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}}