{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA4140-5ED34-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA4140-5ED34-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA4140-5ED34-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA4140-5ED34-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA4140-5ED34-0AA0, 3-pole molded-case circuit breaker, 40 A rated current (TM210 release), 85 kA at 240 V, 35 kA at 480 V.","salesMarkdown":"The Siemens SENTRON 3VA4140-5ED34-0AA0 is a 3-pole molded-case circuit breaker rated 40 A continuous at 40 °C, with a TM210 thermal-magnetic release that provides fixed instantaneous pickup at 400 A. The interrupting capacity hits 85 kA at 240 V and 35 kA at 480 V — enough headroom for most industrial service-entrance and feeder applications where fault current is high. The TM210 release means the thermal element is adjustable (the 210 indicates the thermal adjustment range), but the magnetic instantaneous is fixed at 400 A, so coordination studies should account for that fixed pickup. The 85 kA at 240 V is the headline number, but the 35 kA at 480 V is what drives panel SCCR for a 480 V distribution. At 600 Y/347 V it still holds 18 kA, so it covers 277/480 V wye systems without a problem. The 40 A frame is thermally rated — it carries 40 A at 40 °C, derates to 37 A at 60 °C, and 36 A at 70 °C. That derating curve matters when the breaker is packed into a crowded enclosure with other heat sources. The TM210 release's fixed 400 A magnetic pickup means it will not nuisance-trip on motor inrush if the motor FLA is under about 100 A, but a soft-start or VFD with a high peak current could still coordinate — check the inrush duration against the thermal curve. The breaker measures 76.2 mm wide, 129.4 mm tall, and 75.1 mm deep — a 3-inch wide footprint that fits standard SENTRON 3VA4 panel cutouts and busbar systems. No communication function, no motor drive option, and no neutral conductor upgrade — this is a straight thermal-magnetic feeder breaker.","metaTitle":"Siemens 3VA4140-5ED34-0AA0 SENTRON MCCB, 40 A, 85 kA at 240","metaDescription":"Siemens SENTRON 3VA4140-5ED34-0AA0 molded-case circuit breaker, 3-pole, 40 A rated current, TM210 release, 85 kA at 240 V. Current lifecycle. Available to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"75.1 mm","Width":"76.2 mm","Height":"129.4 mm","at 240 V":"85 kA","at 480 V":"35 kA","at 40 °C":"40 A","at 45 °C":"39 A","at 50 °C":"39 A","at 55 °C":"38 A","at 60 °C":"37 A","at 65 °C":"36 A","at 70 °C":"36 A","Depth [In]":"3 in","Width [In]":"3 in","Height [In]":"5.1 in","at 480 Y/277 V":"35 kA","at 600 Y/347 V":"18 kA","Number Of Poles":"3","Product version":"System protection","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded-case circuit breaker","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"10.6 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Courant permanent assigné Iu":"40 A","Ground-Fault Monitoring Version":"Without","Design Of The Overcurrent Release":"TM210","protection class IP / on the front":"IP40","reference code / acc. to IEC 81346-2":"Q","Product Extension / Optional / Motor Drive":"No","product designation / according to UL file":"MEAB","Adjustable response value current / li max.":"400 A","Adjustable response value current / li min.":"400 A","marking / acc. to UL 489 / 100%-rated breaker":"No","Neutral conductors / upgradeable/retrofittable":"No","Protection Function Of The Overcurrent Release":"LI","number of CO contacts / for auxiliary contacts":"0","Switching Capacity Class Of The Circuit Breaker":"M","Max. rated operational current of the frame size":"125 A","electrical endurance (switching cycles) / at 480 V":"8 000","electrical endurance (switching cycles) / at 600 V":"4 000","Mechanical Service Life (Switching Cycles) / Typical":"15 000","Type Of Electrical Connection / For Main Current Circuit":"Infeed side: Low tab","Arrangement Of Electrical Connectors / For Main Current Circuit":"Load side: Circular conductor terminal","Type of connectable conductor cross-section, round conductor terminal, stranded":"1 x (14 AWG - 8 AWG)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/eb0b65b52362587427f4a4aaaadf7174.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1058351&mlfb=3VA4140-5ED34-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA4140-5ED34-0AA0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA4140-5ED34-0AA0 and get a price?","answer":"This part is sourced to order against an RFQ through independent distribution. Submit an RFQ for current pricing and availability — confirmed at quote time."},{"question":"What is the interrupting capacity of 3VA4140-5ED34-0AA0 at 480 V?","answer":"It is rated 35 kA at 480 V, which covers most industrial 480 V distribution panels with high fault current."},{"question":"What does the TM210 release mean on this MCCB?","answer":"The TM210 is a thermal-magnetic release with a fixed magnetic instantaneous pickup at 400 A. The thermal element is adjustable within the frame rating, but the magnetic trip is fixed — coordination studies must respect that 400 A threshold."},{"question":"Will 3VA4140-5ED34-0AA0 fit in a panel designed for a 3VA1020-3ED36-0AA0?","answer":"The 3VA4140-5ED34-0AA0 is a 3VA4 frame breaker (76.2 mm wide, 3-inch footprint), while the 3VA1020-3ED36-0AA0 is a 3VA1 frame. The 3VA4 frame is physically larger — it will not drop into the same cutout or busbar spacing without panel modification. Verify the mounting footprint before substitution."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA4140-5ED34-0AA0","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/3VA4140-5ED34-0AA0 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}