{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VM1340-4EE32-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VM1340-4EE32-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VM1340-4EE32-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VM1340-4EE32-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VM1340-4EE32-0AA0, molded case circuit breaker, 3-pole, 400 A continuous, TM220 thermal-magnetic release, 121 kA interrupting at 240 VAC, IP40 front, 690 VAC rated.","salesMarkdown":"Its 400 A continuous current at 40 °C and 3-pole construction make it a fit for main or large feeder breakers in commercial and industrial switchboards. The TM220 overcurrent release is a thermal-magnetic design — the thermal element handles overloads with an inverse-time curve, and the magnetic element trips instantaneously on short-circuit. The interrupting ratings tell you where it can safely clear a fault: 121 kA at 240 VAC, 76 kA at 415 VAC, and 53 kA at 500 VAC. That 121 kA figure at 240 V means it can handle high available fault current common in North American 240/120 V distribution without needing a current-limiting fuse upstream. The 690 VAC rated operating voltage and 800 V rated insulation voltage confirm it is designed for 400 V and 480 V systems with margin. ## Thermal derating and continuous current across temperature This breaker holds its full 400 A rating from 40 °C through 50 °C. Above that, it derates: 392 A at 55 °C, 384 A at 60 °C, 376 A at 65 °C, and 367 A at 70 °C. Dimensions are 248 mm high, 138 mm wide, and 110 mm deep. That 138 mm width is standard for a 3-pole MCCB in this class — it occupies three 45 mm pole spaces on a DIN rail or panel-mount base.","metaTitle":"Siemens 3VM1340-4EE32-0AA0 SENTRON MCCB, 400 A, 3-Pole, 121","metaDescription":"Siemens 3VM1340-4EE32-0AA0 SENTRON molded case circuit breaker, 400 A continuous, 3-pole, TM220 release, 121 kA interrupting at 240 VAC. Active production. Quoted on request.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"110 mm","Width":"138 mm","title":"3VM1340-4EE32-0AA0","Height":"248 mm","Maximum":"4 000 A","at 240 V":"121 kA","at 415 V":"76 kA","at 440 V":"76 kA","at 500 V":"53 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]":"4.33 in","Width [In]":"5.43 in","Height [In]":"9.76 in","description":"circuit breaker 3VM1 IEC frame 400 breaking capacity class N Icu=36kA @ 415V 3-pole, line protection TM220, ATFM, In=400A overload protection Ir=280A...400A short-circuit protection Ii=10 x In nut keeper kit","Trip Indicator":"No","Number Of Poles":"3","Voltage Trigger":"No","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Undervoltage Release":"No","Design Of The Product":"Line protection","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"92 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Ground-Fault Monitoring Version":"Without","Insulation Voltage / Rated Value":"800 V","Design Of The Overcurrent Release":"TM220","Design Of Short-Circuit Protection":"For switching capacity values in DC power systems, see the 3VA Molded Case Circuit Breaker Manual; link available under Service & Support in the last chapter","protection class IP / on the front":"IP40","Product Function / Grounding Protection":"No","operating voltage / at AC / rated value":"690 V","operating voltage / at DC / rated value":"500 V","reference code / according to IEC 81346-2":"Q","Product Extension / Optional / Motor Drive":"No","Protection Function Of The Overcurrent Release":"LI","number of CO contacts / for auxiliary contacts":"0","Switching Capacity Class Of The Circuit Breaker":"S","Mechanical Service Life (Operating Cycles) / Typical":"15 000","Type Of Electrical Connection / For Main Current Circuit":"nut keeper kit on both ends","Arrangement Of Electrical Connectors / For Main Current Circuit":"Front connection"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/81bc365102c563584c96036bbf71977e.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=569115&mlfb=3VM1340-4EE32-0AA0"},"ai":{"faq":[{"question":"Where can I buy the 3VM1340-4EE32-0AA0 and what is the lead time?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — no stock count or lead-time number is published here."},{"question":"What is the closest functional alternative to the 3VM1340-4EE32-0AA0?","answer":"The 3VA1112-5EE32-0AA0 is a smaller-frame SENTRON MCCB (typically 100–160 A range) and will not drop into a panel wired for 400 A without busbar and lug changes. The 3VM1340 frame is the correct size for this 400 A continuous rating; the 3VA series is a different frame family. For a direct replacement within the same frame, stick with the 3VM1340-4EE32-0AA0."},{"question":"What are the interrupting ratings of the 3VM1340-4EE32-0AA0?","answer":"121 kA at 240 VAC, 76 kA at 415 VAC, 76 kA at 440 VAC, and 53 kA at 500 VAC. These are the maximum fault currents the breaker can safely interrupt at those voltages."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VM1340-4EE32-0AA0","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/3VM1340-4EE32-0AA0 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}