{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1140-5EF36-0KC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1140-5EF36-0KC0","canonicalUrl":"https://aoctrl.com/siemens/3VA1140-5EF36-0KC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1140-5EF36-0KC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1140-5EF36-0KC0, molded case circuit breaker, 3-pole, 40 A rated continuous current Iu, TM240 thermal-magnetic release, 187 kA breaking capacity at 240 V, 121 kA at 415 V, 75.6 kA at 440 V, 17 kA at 690 V.","salesMarkdown":"## Line protection with high interrupting capacity Its interrupting capacity is the headline: 187 kA at 240 V, 121 kA at 415 V, 75.6 kA at 440 V, and 17 kA at 690 V — these are the fault currents it can safely clear without rupturing. ## Thermal derating and endurance The 40 A rating holds flat from 40 °C to 50 °C, then derates linearly: 38.4 A at 55 °C, 37.6 A at 60 °C, 36.8 A at 65 °C, and 36 A at 70 °C. ## Built-in shunt trip, no undervoltage release There is no undervoltage release, so the breaker will not automatically open on a control-voltage dip. No communication function, phase failure detection, or ground fault monitoring are built in; this is a straightforward line-protection MCCB with a remote-trip option.","metaTitle":"Siemens 3VA1140-5EF36-0KC0 MCCB, 40 A, 187 kA at 240 V","metaDescription":"Siemens SENTRON 3VA1140-5EF36-0KC0 molded case circuit breaker, 40 A rated, 3-pole, TM240 release, 187 kA breaking at 240 V. Current lifecycle stage. 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":"187 kA","at 415 V":"121 kA","at 440 V":"75.6 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":"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":"2 auxiliary switches 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":"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":"2","Protective function of the overcurrent release":"LI","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AA12","Switching capacity class of the circuit breaker":"M","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=181595&mlfb=3VA1140-5EF36-0KC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1140-5EF36-0KC0/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 3VA1140-5EF36-0KC0 at 415 V?","answer":"The breaking capacity is 121 kA at 415 V, which covers most industrial low-voltage fault levels below that threshold."},{"question":"What is the rated continuous current (Iu) of this MCCB?","answer":"The rated continuous current Iu is 40 A, with thermal derating starting above 50 °C ambient."},{"question":"Does 3VA1140-5EF36-0KC0 include a shunt trip?","answer":"Yes, it includes a shunt trip release (STL) for remote tripping. The integrated auxiliary trip module order code is 3VA9688-0BL33."},{"question":"Where can I buy 3VA1140-5EF36-0KC0?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1140-5EF36-0KC0","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/3VA1140-5EF36-0KC0 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}}