{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1140-5ED26-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1140-5ED26-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1140-5ED26-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1140-5ED26-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1140-5ED26-0AA0, molded case circuit breaker, 2-pole, 40 A continuous rating, 187 kA interrupting at 240 VAC, TM210 thermal-magnetic release, line protection version.","salesMarkdown":"The Siemens 3VA1140-5ED26-0AA0 is a 2-pole SENTRON molded case circuit breaker rated for 40 A continuous at 40 °C, with a TM210 thermal-magnetic release providing LI protection (long-time and instantaneous). The short-circuit release (Ii) is fixed at 400 A, which is 10× the continuous rating — a standard instantaneous pickup for motor or feeder protection where nuisance tripping on inrush must be avoided. ## Mounting dimensions and panel integration The breaker measures 130 mm high, 50.8 mm wide (2 inches — standard 2-pole MCCB footprint), and 70 mm deep. The 50.8 mm width means it occupies two 25.4 mm pole spaces in a panelboard or switchboard. At 55 °C it derates to 39 A, at 65 °C to 38 A, and at 70 °C to 37 A. For a panel running warm — say 55 °C inside the enclosure — the continuous load should not exceed 39 A per pole. ## DC rating and application notes The maximum rated operational voltage for DC applications is 250 V. The overcurrent release is the TM210 thermal-magnetic type with LI protection — thermal for overload, magnetic for short circuit. The breaker does not include ground-fault monitoring, communication functions, or a motor drive option. For DC switching power values, Siemens directs to the 3VA molded case circuit breaker device manual for specific derating curves.","metaTitle":"Siemens 3VA1140-5ED26-0AA0 SENTRON MCCB, 40 A, 2-Pole, 187 k","metaDescription":"Siemens SENTRON 3VA1140-5ED26-0AA0 molded case circuit breaker, 40 A continuous, 2-pole, 187 kA at 240 VAC. TM210 thermal-magnetic release. Active production. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"70 mm","Width":"50.8 mm","Height":"130 mm","at 240 V":"187 kA","at 415 V":"121 kA","at 40 °C":"40 A","at 45 °C":"40 A","at 50 °C":"40 A","at 55 °C":"39 A","at 60 °C":"39 A","at 65 °C":"38 A","at 70 °C":"37 A","Depth [In]":"2.8 in","Width [In]":"2 in","Height [In]":"5.1 in","Number Of Poles":"2","Product version":"Line 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":"7.2 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","Tension assignée d'isolement Ui":"500 V","Design Of The Overcurrent Release":"TM210","Design Of Short-Circuit Protection":"For switching power values in DC networks, see the 3VA molded case circuit breaker device manual; link to be found under Service & Support in the last chapter","protection class IP / on the front":"IP40","reference code / acc. to IEC 81346-2":"Q","Max. rated operational voltage Ue with DC":"250 V","Product Extension / Optional / Motor Drive":"No","Adjustable response value current / li max.":"400 A","Adjustable response value current / li min.":"400 A","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":"160 A","Mechanical Service Life (Operating Cycles) / Typical":"20 000","Arrangement Of Electrical Connectors / For Main Current Circuit":"Front terminal","Type of connectable conductor cross-section, round conductor terminal, stranded":"1 x (1.5 - 70 mm²)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/52685030d3ec46b872b6aafc5d528a53.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=694647&mlfb=3VA1140-5ED26-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1140-5ED26-0AA0/alternatives.json"},"ai":{"faq":[{"question":"What is the interrupting capacity of 3VA1140-5ED26-0AA0 at 240 V and 415 V?","answer":"At 240 VAC the interrupting capacity is 187 kA; at 415 VAC it is 121 kA. These are the maximum fault currents the breaker can safely clear at those voltages."},{"question":"What are the mounting dimensions of 3VA1140-5ED26-0AA0?","answer":"Height is 130 mm, width is 50.8 mm (2 inches, standard 2-pole MCCB footprint), and depth is 70 mm."},{"question":"Where can I buy 3VA1140-5ED26-0AA0 and how is it quoted?","answer":"This part is sourced and quoted to order through independent distribution. Availability and current pricing are confirmed at quote time against an RFQ — no stock count or price is published here."},{"question":"What compliance documentation does Siemens provide for 3VA1140-5ED26-0AA0?","answer":"As a SENTRON 3VA series MCCB, the 3VA1140-5ED26-0AA0 carries CE marking for the European market and is designed to meet IEC 60947-2. The manufacturer provides a declaration of conformity and the product manual with specific DC derating curves per the device manual referenced in the specification."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1140-5ED26-0AA0","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/3VA1140-5ED26-0AA0 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}}