{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1140-3EF36-0AB0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1140-3EF36-0AB0","canonicalUrl":"https://aoctrl.com/siemens/3VA1140-3EF36-0AB0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1140-3EF36-0AB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1140-3EF36-0AB0, molded case circuit breaker, 3-pole, 40 A rated continuous current (Iu), TM240 thermal-magnetic overcurrent release, 75.6 kA breaking capacity at 240 V.","salesMarkdown":"Its TM240 thermal-magnetic trip unit provides fixed thermal and magnetic protection for line-feeder or downstream panelboard applications. The 75.6 kA interrupting rating at 240 V drops to 52.5 kA at 415 V and 32 kA at 440 V — the 415 V figure is the one that governs most European 400 V distribution panels, and at 690 V it still holds 10.5 kA, which covers most motor-circuit fault scenarios upstream of a VFD. Thermal derating is flat from 40 °C to 50 °C (40 A), then drops to 38.4 A at 55 °C and 36 A at 70 °C. The auxiliary contact version ships with two HP auxiliary switches, which is enough for a remote trip-indication and a status feedback to a PLC without adding an external aux block. The adjustable thermal time delay tr max. is 1 second — this is the long-time delay band at maximum setting, used to coordinate with downstream branch breakers. No communication function, no phase-failure detection, no voltage trigger — this is a pure overcurrent protector, not a smart breaker.","metaTitle":"Siemens 3VA1140-3EF36-0AB0 SENTRON MCCB, 40 A, 3-Pole, 75.6","metaDescription":"Siemens 3VA1140-3EF36-0AB0 SENTRON molded case circuit breaker, 40 A rated, 3-pole, 75.6 kA at 240 V. TM240 thermal-magnetic trip. Active production. 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":"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":"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=336151&mlfb=3VA1140-3EF36-0AB0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1140-3EF36-0AB0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1140-3EF36-0AB0 and get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm commercial offer."},{"question":"What are the key ratings for 3VA1140-3EF36-0AB0?","answer":"Rated continuous current Iu is 40 A, with a 3-pole configuration and a TM240 thermal-magnetic trip unit. Breaking 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 (-)."},{"question":"What compliance documentation does this brand provide for 3VA1140-3EF36-0AB0?","answer":"As a Siemens SENTRON MCCB, standard documentation includes a CE declaration of conformity, UL/CSA recognition per the 3VA series listing, and RoHS/REACH compliance declarations available through Siemens Industry Online Support."},{"question":"Will 3VA1140-3EF36-0AB0 drop into a panel specified around 3VA1010-2ED32-0JA0 without rewiring?","answer":"The 3VA1140-3EF36-0AB0 is a higher-current variant (40 A vs the 3VA1010 family's typical 10-16 A range) and uses a TM240 trip unit versus the 3VA1010's different trip curve. The 76.2 mm width matches the standard 3-pole MCCB footprint, but verify bus-bar ampacity and the trip-unit coordination study before substitution — the interrupting ratings and thermal settings differ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1140-3EF36-0AB0","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/3VA1140-3EF36-0AB0 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}}