{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1140-3EF36-0CH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1140-3EF36-0CH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1140-3EF36-0CH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1140-3EF36-0CH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1140-3EF36-0CH0, molded case circuit breaker, 3-pole, 40 A, TM240 thermal-magnetic release, 75.6 kA at 240 V, IP40 front.","salesMarkdown":"## Line protection MCCB with undervoltage release The interrupting ratings span 75.6 kA at 240 V down to 10.5 kA at 690 V, so it handles high available fault current on the low-voltage side of a 480 V or 600 V panel. That gives you both a status mirror and a separate alarm contact for remote indication when the breaker trips on fault. Above that it derates: 38.4 A at 55 °C, 37.6 A at 60 °C, 36.8 A at 65 °C, and 36 A at 70 °C.","metaTitle":"Siemens 3VA1140-3EF36-0CH0 SENTRON MCCB, 40 A, 3-Pole, TM240","metaDescription":"Siemens SENTRON 3VA1140-3EF36-0CH0 molded case circuit breaker, 40 A rated continuous current, 3-pole, TM240 thermal-magnetic release, 75.6 kA at 240 V. Current lifecycle stage. So","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":"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":"Yes","Communication Function":"No","Phase failure detection":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","Auxiliary contact version":"2 auxiliary switches + 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":"Undervoltage release (UVR)","Ground fault monitoring version":"Without","Of The Integrated Auxiliary Trip":"3VA9608-0BB24","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":"3","Protective function of the overcurrent release":"LI","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB12","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":"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=120792&mlfb=3VA1140-3EF36-0CH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1140-3EF36-0CH0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1140-3EF36-0CH0 and how do I get a price?","answer":"This part is sourced through independent distribution channels and quoted to order against an RFQ. Submit a request for current pricing and availability — figures are confirmed at quote time."},{"question":"What is the closest functional second-source for 3VA1140-3EF36-0CH0?","answer":"The 3VA1010-4ED36-0CC0 is a peer in the same SENTRON 3VA family, but it carries a different release (4ED36 vs TM240) and a lower interrupting rating. It will not drop into the same panel without verifying the trip curve and SCCR coordination — the TM240 thermal-magnetic curve and 40 A rating are specific to this order code."},{"question":"What are the key ratings for 3VA1140-3EF36-0CH0?","answer":"Rated continuous current Iu is 40 A, with interrupting capacity of 75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 10.5 kA at 690 V. The overcurrent release is a TM240 thermal-magnetic type. Insulation voltage Ui is 800 V."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1140-3EF36-0CH0","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/3VA1140-3EF36-0CH0 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}}