{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1140-3EF32-0KA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1140-3EF32-0KA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1140-3EF32-0KA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1140-3EF32-0KA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1140-3EF32-0KA0, molded case circuit breaker, 3-pole, 40 A rated continuous current, TM240 thermal-magnetic overcurrent release, shunt trip, 75.6 kA at 240 V interrupting capacity.","salesMarkdown":"The TM240 thermal-magnetic overcurrent release handles both overload and short-circuit protection without an external relay — a common choice where adjustable electronic trip is not required. Interrupting capacity is 75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 10.5 kA at 690 V. These figures govern SCCR coordination downstream: at 415 V, for example, the breaker clears a 52.5 kA fault without upstream reinforcement, which simplifies panel design in 400 V distribution. The auxiliary release order code is 3VA9688-0BL33. No auxiliary contacts, undervoltage release, or communication function are fitted, so add-on blocks are needed if those features are required. The breaker holds its 40 A rating through 50 °C ambient (–). Above that, current must be derated: 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 76.2 mm width is a standard 3-pole MCCB footprint — it occupies three 25.4 mm (1-inch) module positions on a DIN rail or panel-mount base.","metaTitle":"Siemens 3VA1140-3EF32-0KA0 SENTRON MCCB, 40 A, 3-Pole, 75.6","metaDescription":"Siemens 3VA1140-3EF32-0KA0 SENTRON molded case circuit breaker, 40 A rated continuous current, 3-pole, 75.6 kA at 240 V. TM240 release, shunt trip. Current production. Sourced to o","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":"Yes","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":"Without","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":"Shunt trip (STL)","Ground fault monitoring version":"Without","Of The Integrated Auxiliary Trip":"3VA9688-0BL33","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":"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":"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=378261&mlfb=3VA1140-3EF32-0KA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1140-3EF32-0KA0/alternatives.json"},"ai":{"faq":[{"question":"What is the interrupting capacity of 3VA1140-3EF32-0KA0 at 415 V?","answer":"52.5 kA at 415 V. At 240 V it is 75.6 kA, at 440 V it is 32 kA, and at 690 V it is 10.5 kA."},{"question":"Where can I buy 3VA1140-3EF32-0KA0?","answer":"This part is sourced and quoted to order through independent distribution. Availability and current pricing are confirmed at quote time against an RFQ."},{"question":"Does 3VA1140-3EF32-0KA0 include a shunt trip?","answer":"Yes, it is designed with a shunt trip release (STL). The auxiliary release order code is 3VA9688-0BL33. No undervoltage release or auxiliary contacts are included."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1140-3EF32-0KA0","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/3VA1140-3EF32-0KA0 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}}