{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1140-3EF36-0AF0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1140-3EF36-0AF0","canonicalUrl":"https://aoctrl.com/siemens/3VA1140-3EF36-0AF0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1140-3EF36-0AF0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1140-3EF36-0AF0, molded case circuit breaker, 3-pole, 40 A rated current (40 °C), breaking capacity 75.6 kA at 240 V AC, TM240 overcurrent release, line protection design.","salesMarkdown":"Its TM240 thermal-magnetic overcurrent release handles overload and short-circuit faults without an undervoltage or shunt trip module — the listing confirms no undervoltage release and no voltage trigger. At 415 V the interrupting rating drops to 52.5 kA, and at 690 V to 11.9 kA — still adequate for most industrial motor branch circuits. Rated current holds at 40 A from 40 °C through 50 °C, then derates to 39 A at 55–60 °C and 38 A at 65 °C, 37 A at 70 °C — a gentle slope that keeps the breaker usable in warm enclosures without oversizing. Power loss is 10.8 W maximum — relevant for thermal management in a tightly packed panel. The trip indicator gives a visual flag when the breaker has tripped, saving troubleshooting time on a line-down call. The 3-pole footprint fits standard Siemens SENTRON mounting bases and busbar systems. The auxiliary switch configuration is 1 auxiliary + 1 trip alarm switch (HQ) — verify the wiring diagram for your alarm circuit. No communication module is fitted, so this is a standalone breaker; if you need remote monitoring, order the communication-capable variant separately.","metaTitle":"Siemens 3VA1140-3EF36-0AF0 SENTRON MCCB, 40 A, 3-Pole, 75.6","metaDescription":"Siemens SENTRON 3VA1140-3EF36-0AF0 molded case circuit breaker, 40 A rated, 3-pole, breaking capacity 75.6 kA at 240 V AC. Current 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":"1 auxiliary switch + 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":"2","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=486767&mlfb=3VA1140-3EF36-0AF0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1140-3EF36-0AF0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1140-3EF36-0AF0 and how do I get a price?","answer":"This part is sourced to order against an RFQ through independent distribution. Submit a request for quote (RFQ) to confirm availability and current pricing — no stock or price figures are published here."},{"question":"What is the breaking capacity of 3VA1140-3EF36-0AF0 at 240 V?","answer":"75.6 kA at 240 V AC. At 415 V it is 52.5 kA, at 440 V 32 kA, and at 500 V / 690 V it is 11.9 kA."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1140-3EF36-0AF0","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/3VA1140-3EF36-0AF0 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}}