{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1140-4EF36-0JA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1140-4EF36-0JA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1140-4EF36-0JA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1140-4EF36-0JA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1140-4EF36-0JA0, 3-pole molded case circuit breaker, 40 A rated continuous current (Iu), TM240 thermal-magnetic release, line protection version, IP40 front, 70 mm depth.","salesMarkdown":"The Siemens 3VA1140-4EF36-0JA0 is a 3-pole molded case circuit breaker from the SENTRON 3VA series, rated for a continuous current Iu of 40 A and an insulation voltage Ui of 800 V. The interrupting ratings are 121 kA at 240 V, 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at 690 V, covering most industrial distribution fault levels. The 40 A rating holds flat from 40 °C through 50 °C, then derates linearly to 36 A at 70 °C — a clean thermal curve that avoids surprises in a warm enclosure. The 70 mm depth and 76.2 mm width fit the standard SENTRON 3VA panel footprint, so a swap from a same-frame 3VA breaker requires no bus-bar rework. ## Panel Fit & Integration The 76.2 mm width (4 module spaces on a 18 mm pitch) and 130 mm height leave clearance for adjacent breakers and bus-bar connections. The IP40 front protection suits enclosed distribution boards; no additional gland-plate sealing is needed for dry indoor locations. The TM240 release combines a thermal bimetal for overload protection and a magnetic coil for short-circuit protection. The shunt trip (STL) allows remote tripping from a PLC or emergency-stop circuit, using an auxiliary release order code 3VA9688-0BL32. No auxiliary contacts, undervoltage release, or communication function are fitted on this variant — those are separate add-on modules if needed.","metaTitle":"Siemens 3VA1140-4EF36-0JA0 SENTRON MCCB, 40 A, 3-Pole, 121 k","metaDescription":"Siemens 3VA1140-4EF36-0JA0 SENTRON molded case circuit breaker, 40 A rated, 3-pole, TM240 release, 121 kA at 240 V. Current lifecycle. 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":"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":"3VA9688-0BL32","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":"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=351407&mlfb=3VA1140-4EF36-0JA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1140-4EF36-0JA0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1140-4EF36-0JA0 and what is the lead time?","answer":"This part is sourced to order through independent distribution. Submit an RFQ for current availability and lead time — pricing and stock are confirmed at quote time."},{"question":"What are the interrupting ratings for 3VA1140-4EF36-0JA0?","answer":"121 kA at 240 V, 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at 690 V."},{"question":"What is the thermal derating curve for this MCCB?","answer":"The 40 A rating holds at 40 °C through 50 °C, then derates to 38.4 A at 55 °C, 37.6 A at 60 °C, 36.8 A at 65 °C, and 36 A at 70 °C."},{"question":"Will 3VA1140-4EF36-0JA0 drop into a panel specified around 3VA1110-5EE32-0JA0?","answer":"Both are 3-pole SENTRON 3VA breakers sharing the same 70 mm depth and 76.2 mm width, so the mechanical footprint is identical. The functional difference is the TM240 release and shunt trip on this unit versus the other variant's release — verify the trip curve and accessories match your protection scheme before swapping."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1140-4EF36-0JA0","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/3VA1140-4EF36-0JA0 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}}