{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1140-3ED26-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1140-3ED26-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1140-3ED26-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1140-3ED26-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1140-3ED26-0AA0, molded case circuit breaker, 2-pole, 40 A rated at 40 °C, 75.6 kA breaking capacity at 240 V AC, TM210 overcurrent release, line protection design.","salesMarkdown":"Breaking capacity is 75.6 kA at 240 V AC and 52.5 kA at 415 V AC — that's the fault current it can safely interrupt without welding contacts or venting plasma. Rated current holds at 40 A from 40 °C up to 50 °C, then drops to 39 A at 55 °C and 60 °C, 38 A at 65 °C, and 37 A at 70 °C. That's a shallow derate curve — you lose only 3 A across a 30 °C rise, so it's stable in a warm panel. Maximum power loss is 7.2 W — that's the heat it dumps into the enclosure at full load. In a dense panel, that matters for thermal coordination; you don't want to stack a row of these without some ventilation.","metaTitle":"Siemens 3VA1140-3ED26-0AA0 SENTRON MCCB, 40A, 2-Pole, 75.6kA","metaDescription":"Siemens SENTRON 3VA1140-3ED26-0AA0 molded case circuit breaker, 40A rated, 2-pole, 75.6kA interrupting at 240V AC. TM210 release, line protection. Active production. Available to o","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","Maximum":"0 A","Minimum":"0 A","at 240 V":"75.6 kA","at 415 V":"52.5 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]":"2 in","Height [In]":"5.12 in","Trip Indicator":"No","Number Of Poles":"2","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":"7.2 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Ground-Fault Monitoring Version":"Without","Insulation Voltage / Rated Value":"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","Product Function / Grounding Protection":"No","operating voltage / at AC / rated value":"415 V","operating voltage / at DC / rated value":"250 V","reference code / according to IEC 81346-2":"Q","Product Extension / Optional / Motor Drive":"No","Protection Function Of The Overcurrent Release":"LI","number of CO contacts / for auxiliary contacts":"0","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":"https://cdn.aoctrl.com/443f6ad11ea45cbfc73e5280e028725b.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=430640&mlfb=3VA1140-3ED26-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1140-3ED26-0AA0/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1140-3ED26-0AA0","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/3VA1140-3ED26-0AA0 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}}