{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1140-3EF36-0AH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1140-3EF36-0AH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1140-3EF36-0AH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1140-3EF36-0AH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1140-3EF36-0AH0, molded case circuit breaker, 3-pole, 40 A rated current at 40 °C, TM240 thermal-magnetic release, 52.5 kA breaking capacity at 415 V, line protection design.","salesMarkdown":"Its TM240 thermal-magnetic release handles overload and short-circuit conditions without external control wiring — a straightforward drop-in for a 40 A feeder or subfeed application. At 415 V the interrupting rating is 52.5 kA, dropping to 32 kA at 440 V and 11.9 kA at 500 V or 690 V. That 52.5 kA at 415 V gives you solid headroom for most commercial and light industrial panels where the prospective fault current sits in the 25–35 kA range. Rated current holds at 40 A up to 50 °C ambient, then derates to 39 A at 55–60 °C and 38 A at 65 °C, reaching 37 A at 70 °C. ## Auxiliary switching and trip indication The trip indicator on the front gives local visual confirmation. The SENTRON 3VA family is Siemens' standard MCCB line, so replacement availability through distribution is steady.","metaTitle":"Siemens 3VA1140-3EF36-0AH0 SENTRON MCCB, 40 A, 3-Pole, 52.5","metaDescription":"Siemens SENTRON 3VA1140-3EF36-0AH0 molded case circuit breaker, 40 A rated, 3-pole, 52.5 kA breaking at 415 V, TM240 release, line protection. Active production. Sourced 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":"2 auxiliary switches + 1 trip alarm switch HQ","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":"3","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB12","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=399689&mlfb=3VA1140-3EF36-0AH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1140-3EF36-0AH0/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1140-3EF36-0AH0","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/3VA1140-3EF36-0AH0 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}}