{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1140-6EF36-0AF0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1140-6EF36-0AF0","canonicalUrl":"https://aoctrl.com/siemens/3VA1140-6EF36-0AF0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1140-6EF36-0AF0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1140-6EF36-0AF0, molded case circuit breaker, 3-pole, 40 A rated continuous current, TM240 thermal-magnetic release, 220 kA breaking capacity at 240 V, IP40 front protection.","salesMarkdown":"Its breaking capacity hits 220 kA at 240 V, 154 kA at 415 V, and 121 kA at 440 V — figures that give the specifying engineer serious SCCR headroom for high-fault installations like transformer secondaries or large motor control centers. At 690 V it still clears 17 kA, so it handles 600 V class industrial feeds without derating the interrupting rating. The thermal curve holds full 40 A from 40 °C through 50 °C ambient, then tapers to 38.4 A at 55 °C, 37.6 A at 60 °C, 36.8 A at 65 °C, and 36 A at 70 °C. The TM240 release has an adjustable long-time delay tr up to 1 s, letting you coordinate selectively with downstream feeders. ## Integration and footprint The 3VA1140-6EF36-0AF0 measures 130 mm high × 76.2 mm wide × 70 mm deep. The 15,000 latching endurance cycles cover the mechanical life of the operating mechanism — adequate for a main feeder breaker that sees infrequent switching, but not designed for daily motor-starting duty. For that, you would want a contactor in series.","metaTitle":"Siemens 3VA1140-6EF36-0AF0 SENTRON MCCB, 40 A, 3-Pole, 220 k","metaDescription":"Siemens SENTRON 3VA1140-6EF36-0AF0 molded case circuit breaker, 40 A rated, 3-pole, 220 kA breaking at 240 V. TM240 release, IP40 front. 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","at 240 V":"220 kA","at 415 V":"154 kA","at 440 V":"121 kA","at 690 V":"17 kA","at 40 °C":"40 A","at 45 °C":"40 A","at 50 °C":"40 A","at 55 °C":"38.4 A","at 60 °C":"37.6 A","at 65 °C":"36.8 A","at 70 °C":"36 A","Trip indicator":"Yes","Number of poles":"3","Product version":"Line protection","Voltage trigger":"No","lifecycle_stage":"current","Product brand name":"SENTRON","Product designation":"Molded case circuit breaker","Latching - endurance":"15 000","Undervoltage Release":"No","Communication Function":"No","Phase failure detection":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","Auxiliary contact version":"1 auxiliary switch + 1 trip alarm switch HQ","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Rated continuous current Iu":"40 A","Rated insulation voltage Ui":"800 V","Design of the auxiliary release":"without auxiliaryrelease","Ground fault monitoring version":"Without","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","Reference code / acc. to DIN EN 81346-2":"Q","Adjustable response value time / tr max.":"1","Adjustable response value time / tr min.":"1","Max. rated operational voltage Ue with DC":"500 V","Undervoltage Release With Leading Contact":"No","Product extension / optional / motor drive":"Yes","Adjustable response value current / Ir max.":"40 A","Adjustable response value current / li max.":"400 A","Adjustable response value current / li min.":"200 A","Adjustable response value current / lr min.":"28 A","Neutral conductors / upgradeable/retrofittable":"No","Number of CO contacts / for auxiliary contacts":"2","Protective function of the overcurrent release":"LI","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB12","Switching capacity class of the circuit breaker":"H","Max. rated operational current of the frame size":"160 A","Max. rated operational voltage Ue with AC 50/60Hz":"690 V","Type of electrical connection / for main current circuit":"box terminal","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":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=53773&mlfb=3VA1140-6EF36-0AF0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1140-6EF36-0AF0/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3VA1140-6EF36-0AF0?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Submit a request for current pricing and availability — both are confirmed at quote time."},{"question":"What is the closest functional second-source to 3VA1140-6EF36-0AF0?","answer":"The 3VA1010-2ED36-0AC0 is a lower-current variant in the same SENTRON 3VA family, but it has a different frame size and breaking capacity. The 3VA1140-6EF36-0AF0 is the 40 A, high-interrupting version with the TM240 release. A direct drop-in replacement without rewiring would require matching the frame rating and accessory configuration — verify the existing panel's SCCR requirements before substituting."},{"question":"Will 3VA1140-6EF36-0AF0 drop into a panel specified around 3VA1010-2ED36-0AC0 without rewiring?","answer":"Not without checking the bus bar spacing and mounting hole pattern. Both are 3-pole SENTRON breakers, but the 3VA1140 frame is physically larger to handle the higher continuous current and interrupting rating. Measure the existing panel's cutout against the 130 × 76.2 × 70 mm dimensions of this unit before assuming mechanical interchangeability."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1140-6EF36-0AF0","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/3VA1140-6EF36-0AF0 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}}