{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VM1140-3ED12-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VM1140-3ED12-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VM1140-3ED12-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VM1140-3ED12-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON Molded case circuit breaker, 3VM1140-3ED12-0AA0, 1-pole, 40 A rated continuous current Iu, 53 kA breaking capacity at 240 V, TM210 thermal-magnetic release, IP40 front protection.","salesMarkdown":"## What this 1-pole MCCB does in the panel The TM210 thermal-magnetic release gives fixed thermal pickup at 40 A and a fixed magnetic trip at 400 A (10× Ir), so there is no adjustment dial to set; what you see on the nameplate is what the breaker will do. At 240 V it interrupts faults up to 53 kA, which covers most secondary-side distribution in North American panels; at 415 V the breaking capacity drops to 7.5 kA, still adequate for European 400 V branch circuits behind a larger upstream breaker. At 55 °C it drops to 39 A, at 65 °C to 38 A, and at the maximum operating temperature of 70 °C it still carries 37 A. That thermal curve matters if the breaker is packed into a high-density panel or mounted near heat sources like transformers or drives; you can run it at 40 A continuous up to 50 °C without second-guessing the nameplate. The breaker occupies a single 25.4 mm (1 in) width on the DIN rail — standard 1-pole modular footprint. Depth is 70 mm (2.8 in), height 130 mm (5.1 in). The TM210 release is non-interchangeable; the breaker ships as a sealed unit with no user-accessible trip adjustment.","metaTitle":"Siemens SENTRON 3VM1140-3ED12-0AA0 MCCB, 1-pole, 40 A, 53 kA","metaDescription":"Siemens SENTRON 3VM1140-3ED12-0AA0 molded case circuit breaker. 1-pole, 40 A rated, 53 kA at 240 V. TM210 release. Current lifecycle. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"70 mm","Width":"25.4 mm","title":"3VM1140-3ED12-0AA0","Height":"130 mm","at 240 V":"53 kA","at 415 V":"7.5 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]":"2.8 in","Width [in]":"1 in","Height [in]":"5.1 in","description":"circuit breaker 3VM1 IEC frame 160 breaking capacity class N Icu=25kA @ 240V 1-pole, line protection TM210, FTFM, In=40A overload protection Ir=40A, not adjustable short-circuit protection Ii=10 x In nut keeper kit","Number of poles":"1","Product version":"Line protection","lifecycle_stage":"current","Product brand name":"SENTRON","Product designation":"Molded case circuit breaker","Latching - endurance":"12 000","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","Power loss [W] / maximum":"3.6 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Rated continuous current Iu":"40 A","Rated insulation voltage Ui":"500 V","Ground fault monitoring version":"Without","Design of the overcurrent release":"TM210","Protection class IP / on the front":"IP40","Reference code / acc. to DIN EN 81346-2":"Q","Max. rated operational voltage Ue with DC":"125 V","Product extension / optional / motor drive":"No","Adjustable response value current / Ir max.":"40 A","Adjustable response value current / li max.":"400 A","Adjustable response value current / li min.":"400 A","Adjustable response value current / lr min.":"40 A","Neutral conductors / upgradeable/retrofittable":"No","Number of CO contacts / for auxiliary contacts":"0","Protective function of the overcurrent release":"LI","Switching capacity class of the circuit breaker":"N","Max. rated operational current of the frame size":"160 A","Max. rated operational voltage Ue with AC 50/60Hz":"415 V","Type of electrical connection / for main current circuit":"lug terminal","Arrangement of electrical connectors / for main current circuit":"Front connection","Type of connectable conductor cross-section, connection screw, width x thickness , max.":"17 x 6,5","Type of connectable conductor cross-section, connection screw, width x thickness , min.":"12 x 0"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/be82629451abee9fe4aefb8d0544915b.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=575051&mlfb=3VM1140-3ED12-0AA0"},"ai":{"faq":[{"question":"What is the breaking capacity of 3VM1140-3ED12-0AA0 at 240 V and 415 V?","answer":"At 240 V it interrupts 53 kA; at 415 V it interrupts 7.5 kA."},{"question":"What is the closest functional second-source for 3VM1140-3ED12-0AA0?","answer":"The Siemens 3VA1020-3ED36-0AA0 is a 1-pole 40 A MCCB from the newer 3VA platform, but it uses a different trip unit and has a different depth dimension — it will not drop into the same panel cutout without checking the mounting footprint and wiring terminations."},{"question":"What compliance documentation does Siemens provide for 3VM1140-3ED12-0AA0?","answer":"Siemens SENTRON MCCBs typically carry UL, CSA, and CE certifications, and the brand provides RoHS and REACH declarations. Specific cert numbers and declarations are included with the shipment or available on request."},{"question":"How do I get current pricing and availability for 3VM1140-3ED12-0AA0?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Submit an RFQ for current pricing and availability — confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VM1140-3ED12-0AA0","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/3VM1140-3ED12-0AA0 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}