{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1340-7EE42-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1340-7EE42-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1340-7EE42-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1340-7EE42-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1340-7EE42-0AA0, molded case circuit breaker, 4-pole, 400 A, TM220 overcurrent release, line protection version, IP40 front.","salesMarkdown":"## Rated current and breaking capacity — what they mean for panel coordination The Siemens 3VA1340-7EE42-0AA0 is a SENTRON molded case circuit breaker (MCCB) rated for a continuous current Iu of 400 A at 40 °C through 50 °C, derating to 367 A at 70 °C. That 400 A figure governs the upstream conductor sizing and the downstream load it can carry without nuisance tripping — sized for a main feeder or large motor branch on a 400 V industrial panel. Breaking capacity hits 440 kA at 240 V AC, 242 kA at 415/440 V, and 154 kA at 500 V — numbers that place it squarely in the high-interrupting class for fault-current-heavy installations like transformer secondaries or large motor control centers. The 690 V rating drops to 17 kA, which still covers most low-voltage distribution scenarios where the service voltage stays under 600 V. The TM220 overcurrent release provides thermal-magnetic protection — thermal element for overload, magnetic for short-circuit. No ground-fault monitoring and no N-conductor protection, so this is a straight line-protection device; add external modules if those functions are required. ## Mounting, dimensions, and panel integration The 3VA1340-7EE42-0AA0 measures 248 mm high by 184 mm wide by 110 mm deep — a 4-pole MCCB footprint that fits standard Siemens SENTRON mounting plates. Optional motor drive allows remote electrical operation, useful for panels with remote trip/close functionality. Above that, derate linearly: 392 A at 55 °C, 384 A at 60 °C, 376 A at 65 °C, 367 A at 70 °C.","metaTitle":"Siemens 3VA1340-7EE42-0AA0 SENTRON MCCB 400 A, 4-Pole, Line","metaDescription":"Siemens 3VA1340-7EE42-0AA0 SENTRON molded case circuit breaker, 400 A, 4-pole, TM220 release, 440 kA at 240 V. Active production, available to order. Request RFQ for pricing and le","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"110 mm","Width":"184 mm","Height":"248 mm","at 240 V":"440 kA","at 415 V":"242 kA","at 440 V":"242 kA","at 500 V":"154 kA","at 690 V":"17 kA","at 40 °C":"400 A","at 45 °C":"400 A","at 50 °C":"400 A","at 55 °C":"392 A","at 60 °C":"384 A","at 65 °C":"376 A","at 70 °C":"367 A","Depth [In]":"4.3 in","Width [In]":"7.2 in","Height [In]":"9.8 in","Number Of Poles":"4","Product version":"Line protection","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"92.1 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Courant permanent assigné Iu":"400 A","Ground-Fault Monitoring Version":"Without","Tension assignée d'isolement Ui":"800 V","Design Of The Overcurrent Release":"TM220","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","design of the N-conductor protection":"Without","reference code / acc. to IEC 81346-2":"Q","Max. rated operational voltage Ue with DC":"600 V","Product Extension / Optional / Motor Drive":"Yes","Adjustable response value current / lg min.":"400 A","Adjustable response value current / li max.":"4 000 A","Adjustable response value current / li min.":"4 000 A","Neutral conductors / upgradeable/retrofittable":"No","Protection Function Of The Overcurrent Release":"LI","number of CO contacts / for auxiliary contacts":"0","Switching Capacity Class Of The Circuit Breaker":"C","Max. rated operational current of the frame size":"400 A","Max. rated operational voltage Ue with AC 50/60Hz":"690 V","Mechanical Service Life (Switching Cycles) / Typical":"15 000","Arrangement Of Electrical Connectors / For Main Current Circuit":"Front terminal"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/f59d8c360c846d5ff9ef773daebb7908.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1093769&mlfb=3VA1340-7EE42-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1340-7EE42-0AA0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1340-7EE42-0AA0?","answer":"This MCCB is sourced and quoted to order against an RFQ through independent distribution. Submit a request for quote to confirm current pricing and availability — no stock or lead-time figures are published here."},{"question":"What are the key ratings of 3VA1340-7EE42-0AA0?","answer":"Rated continuous current Iu is 400 A with a TM220 thermal-magnetic release. Breaking capacity reaches 440 kA at 240 V AC, 242 kA at 415/440 V, and 154 kA at 500 V. Rated insulation voltage is 800 V. It is a 4-pole line-protection MCCB with front IP40."},{"question":"What is the depth of 3VA1340-7EE42-0AA0?","answer":"The depth is 110 mm (4.3 inches). Overall dimensions are 248 mm high by 184 mm wide by 110 mm deep."},{"question":"Does 3VA1340-7EE42-0AA0 support a motor drive?","answer":"Yes, the product extension for a motor drive is listed as yes, allowing remote electrical operation via an optional motor operator."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1340-7EE42-0AA0","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/3VA1340-7EE42-0AA0 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}}