{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1140-4EF36-0CC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1140-4EF36-0CC0","canonicalUrl":"https://aoctrl.com/siemens/3VA1140-4EF36-0CC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1140-4EF36-0CC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1140-4EF36-0CC0, molded case circuit breaker, 3-pole, 40 A, TM240 release, 121 kA at 240 V, 70 mm depth, with undervoltage release.","salesMarkdown":"It carries a TM240 thermal-magnetic overcurrent release, meaning the thermal trip element is fixed for a 40 A frame and the magnetic instantaneous pickup is set at 240 A — that's 6x In, a standard motor-starting tolerance for general distribution. Breaking capacity is 121 kA at 240 V, 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at 690 V. For a 415 V distribution board, the 75.6 kA figure covers most industrial transformer banks up to around 2 MVA; at 690 V the 11.9 kA rating still handles a substantial fault, but verify it against your transformer impedance and cable length. The IEC 60947-2 rating class is what governs here — this is a utilization category breaker, not a plain isolator. Above that the curve steps down: 38.4 A at 55 °C, 37.6 A at 60 °C, 36.8 A at 65 °C, 36 A at 70 °C. If your panel internal temp hits 60 °C, you lose 2.4 A — plan for it. ## Auxiliaries and releases — what's on board Comes with 2 auxiliary switches (HQ type) and an undervoltage release (UVR) fitted. The integrated auxiliary trip is order code 3VA9608-0BB24. That's a factory-fitted accessory, not field-installable, so confirm your BOM matches this build. ## Panel fit — dimensions and IP Width 76.2 mm (3-pole footprint), height 130 mm, depth 70 mm. That depth is the body only — add clearance for the arc chute vents and cable bending radius. Front IP40 protection; the terminals are live when the cover is open, so the breaker belongs behind a panel door or in a locked enclosure.","metaTitle":"Siemens 3VA1140-4EF36-0CC0 SENTRON MCCB, 40 A, 70 mm depth","metaDescription":"Siemens 3VA1140-4EF36-0CC0 SENTRON molded case circuit breaker, 40 A rated, 121 kA at 240 V, TM240 release, undervoltage release included. Current 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":"121 kA","at 415 V":"75.6 kA","at 440 V":"52.5 kA","at 690 V":"11.9 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":"Yes","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":"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":"2","Protective function of the overcurrent release":"LI","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AA12","Switching capacity class of the circuit breaker":"S","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=65818&mlfb=3VA1140-4EF36-0CC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1140-4EF36-0CC0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1140-4EF36-0CC0 and get a price?","answer":"This MCCB is sourced to order through independent distribution against an RFQ. Submit a request for quote; availability and current pricing are confirmed at quote time."},{"question":"What is the depth of 3VA1140-4EF36-0CC0?","answer":"The listed depth is 70 mm. That is the body depth only — allow additional clearance for arc chute vents and cable bending radius when sizing the enclosure."},{"question":"What is the width of 3VA1140-4EF36-0CC0?","answer":"Width is 76.2 mm, which is the standard 3-pole footprint for SENTRON 3VA breakers of this frame size."},{"question":"What overcurrent release does 3VA1140-4EF36-0CC0 have?","answer":"It has a TM240 thermal-magnetic release. The thermal element is fixed for 40 A continuous; the magnetic instantaneous pickup is set at 240 A (6x In). This suits general distribution and motor-starting duty where the inrush transient stays under 6x rated current."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1140-4EF36-0CC0","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/3VA1140-4EF36-0CC0 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}}