{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1140-3EF36-0AG0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1140-3EF36-0AG0","canonicalUrl":"https://aoctrl.com/siemens/3VA1140-3EF36-0AG0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1140-3EF36-0AG0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1140-3EF36-0AG0, 3-pole molded case circuit breaker, 40 A rated current, TM240 thermal-magnetic release, line protection design, breaking capacity 75.6 kA at 240 V.","salesMarkdown":"## Siemens SENTRON 3VA1140-3EF36-0AG0 — 40 A MCCB with TM240 Release The Siemens SENTRON 3VA1140-3EF36-0AG0 is a 3-pole molded case circuit breaker (MCCB) rated for line protection, carrying a continuous current of 40 A up to 50 °C and derating to 37 A at 70 °C. Its TM240 thermal-magnetic release provides fixed overload and short-circuit protection for feeder and distribution circuits in industrial panels. ## Breaking Capacity and Voltage Ratings Rated breaking capacity reaches 75.6 kA at 240 V, dropping to 52.5 kA at 415 V, 32 kA at 440 V, and 11.9 kA at both 500 V and 690 V. This covers most low-voltage distribution fault levels in North American (240/480 V) and IEC (400/690 V) systems. The breaker holds full 40 A rating from 40 °C through 50 °C, then steps down: 39 A at 55 °C and 60 °C, 38 A at 65 °C, 37 A at 70 °C. Maximum power loss is 10.8 W, manageable in a standard enclosure with natural convection. A trip indicator is present for visual fault identification.","metaTitle":"Siemens 3VA1140-3EF36-0AG0 SENTRON MCCB, 40 A, 75.6 kA at 24","metaDescription":"Siemens SENTRON 3VA1140-3EF36-0AG0 molded case circuit breaker, 40 A rated, 75.6 kA breaking at 240 V. 3-pole, TM240 release, line protection. Active production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"70 mm","Width":"76.2 mm","Height":"130 mm","Maximum":"0 A","Minimum":"0 A","at 240 V":"75.6 kA","at 415 V":"52.5 kA","at 440 V":"32 kA","at 500 V":"11.9 kA","at 690 V":"11.9 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]":"2.76 in","Width [In]":"3 in","Height [In]":"5.12 in","Trip Indicator":"Yes","Number Of Poles":"3","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":"10.8 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Of The Supplied Basic Switch":"3VA11403EF360AA0","Design Of The Auxiliary Switch":"1 auxiliary switch + 1 trip alarm switch HP","Ground-Fault Monitoring Version":"Without","Insulation Voltage / Rated Value":"800 V","Design Of The Overcurrent Release":"TM240","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","Product Function / Grounding Protection":"No","operating voltage / at AC / rated value":"690 V","operating voltage / at DC / rated value":"500 V","reference code / according to IEC 81346-2":"Q","Product Extension / Optional / Motor Drive":"Yes","Protection Function Of The Overcurrent Release":"LI","number of CO contacts / for auxiliary contacts":"2","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB11","Switching Capacity Class Of The Circuit Breaker":"N","Mechanical Service Life (Operating Cycles) / Typical":"20 000","Type Of Electrical Connection / For Main Current Circuit":"box terminal on both sides","Arrangement Of Electrical Connectors / For Main Current Circuit":"Front terminal"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=443580&mlfb=3VA1140-3EF36-0AG0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1140-3EF36-0AG0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1140-3EF36-0AG0?","answer":"This order code is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What is the breaking capacity of 3VA1140-3EF36-0AG0 at 415 V?","answer":"At 415 V the breaking capacity is 52.5 kA. At 240 V it is 75.6 kA, at 440 V it is 32 kA, and at 500 V and 690 V it is 11.9 kA."},{"question":"What does the TM240 release designation mean?","answer":"TM240 indicates a thermal-magnetic (fixed) overcurrent release rated for 40 A continuous. The breaker holds 40 A up to 50 °C ambient, then derates to 37 A at 70 °C."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1140-3EF36-0AG0","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/3VA1140-3EF36-0AG0 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}}