{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1140-3EF32-0AB0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1140-3EF32-0AB0","canonicalUrl":"https://aoctrl.com/siemens/3VA1140-3EF32-0AB0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1140-3EF32-0AB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1140-3EF32-0AB0, molded case circuit breaker, 3-pole, 40 A, 75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, 10.5 kA at 690 V, TM240 thermal-magnetic release, IP40 front, auxiliary switches 2 HP.","salesMarkdown":"## Siemens SENTRON 3VA1140-3EF32-0AB0 — 40 A MCCB with TM240 Release Its breaking capacity is specified across four voltage levels: 75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 10.5 kA at 690 V. ## Thermal-Magnetic Release and Temperature Derating The adjustable response time tr has a maximum setting of 1 s, giving you some selectivity window downstream. Above that, it starts to derate: 38.4 A at 55 °C, 37.6 A at 60 °C, 36.8 A at 65 °C, and 36 A at 70 °C. If your panel sits near a furnace or drive cabinet running hot, factor that 10% drop at 70 °C into your load budget. ## Physical Fit and Auxiliary Contacts Dimensions are 130 mm high, 76.2 mm wide, 70 mm deep — a compact 3-pole footprint that fits standard Siemens SENTRON panel cutouts and busbar systems. The depth of 70 mm means it clears most gland plates and backpanel wiring without forcing a deeper enclosure. It comes with 2 auxiliary switches (HP type) pre-installed. If you need those options, you're looking at a different 3VA variant. No voltage trigger or phase-failure detection built in; it's a pure overcurrent device.","metaTitle":"Siemens 3VA1140-3EF32-0AB0 MCCB, 40 A, 3-Pole, 75.6 kA at 24","metaDescription":"Siemens SENTRON 3VA1140-3EF32-0AB0 molded case circuit breaker, 40 A, 3-pole, breaking capacity 75.6 kA at 240 V. Active production. Sourced to order. RFQ for price and availabilit","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":"75.6 kA","at 415 V":"52.5 kA","at 440 V":"32 kA","at 690 V":"10.5 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":"No","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":"2 auxiliary switches HP","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":"3VA9988-0AA11","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":"690 V","Type of electrical connection / for main current circuit":"lug terminal","Arrangement of electrical connectors / for main current circuit":"Front terminal","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,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=207745&mlfb=3VA1140-3EF32-0AB0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1140-3EF32-0AB0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1140-3EF32-0AB0 and how do I get a price?","answer":"This part is sourced to order through independent distribution. Submit an RFQ; availability and current pricing are confirmed at quote time."},{"question":"What is the breaking capacity of 3VA1140-3EF32-0AB0 at 415 V?","answer":"At 415 V the breaking capacity is 52.5 kA. It also carries 75.6 kA at 240 V, 32 kA at 440 V, and 10.5 kA at 690 V."},{"question":"What is the depth of 3VA1140-3EF32-0AB0?","answer":"The depth is 70 mm. Width is 76.2 mm, height is 130 mm."},{"question":"Does 3VA1140-3EF32-0AB0 include auxiliary contacts?","answer":"Yes, it comes with 2 auxiliary switches (HP type) fitted. There is no undervoltage release or shunt trip."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1140-3EF32-0AB0","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/3VA1140-3EF32-0AB0 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}}