{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VM1340-4ED42-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VM1340-4ED42-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VM1340-4ED42-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VM1340-4ED42-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VM1340-4ED42-0AA0, Molded case circuit breaker, 4-pole, 400 A at 40 °C, TM210 overcurrent release, breaking capacity 121 kA at 240 V.","salesMarkdown":"The Siemens SENTRON 3VM1340-4ED42-0AA0 is a 4-pole molded case circuit breaker (MCCB) rated 400 A at 40 °C, with a TM210 thermal-magnetic overcurrent release. Breaking capacity is 121 kA at 240 V AC, 76 kA at 415/440 V, and 53 kA at 500 V. The 690 V rated insulation voltage (Ui) and 500 V max DC operational rating (Ue) confirm it for 480/600 VAC industrial panels and some DC distribution applications. The 400 A rating holds up to 50 °C ambient. Above that it derates linearly: 392 A at 55 °C, 384 A at 60 °C, 376 A at 65 °C, and 367 A at 70 °C. Maximum power loss is 92 W — a factor for panel thermal budgeting if you're stacking multiple breakers in a sealed enclosure. ## What the TM210 release means for coordination The TM210 is a thermal-magnetic release with a fixed thermal element (the 400 A Iu) and an adjustable magnetic pickup (li) from 2000 A to 4000 A. That adjustability is the key selectivity tool: you set the magnetic threshold high enough to pass downstream branch breaker instantaneous trips, but low enough to protect the feeder cable. Ground-fault monitoring and N-conductor protection are also absent, so plan external GFCI or neutral protection if the application requires it.","metaTitle":"Siemens 3VM1340-4ED42-0AA0 SENTRON MCCB, 400 A, 4-Pole, TM21","metaDescription":"Siemens SENTRON 3VM1340-4ED42-0AA0 molded case circuit breaker, 400 A at 40 °C, 4-pole, TM210 release, 121 kA at 240 V. Current lifecycle stage. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"110 mm","Width":"184 mm","Height":"248 mm","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]":"4.3 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 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":"690 V","Design Of The Overcurrent Release":"TM210","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","design of the N-conductor protection":"Without","reference code / acc. to IEC 81346-2":"Q","Max. rated operational voltage Ue with DC":"500 V","Product Extension / Optional / Motor Drive":"No","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":"S","Max. rated operational current of the frame size":"400 A","Max. rated operational voltage Ue with AC 50/60Hz":"500 V","Mechanical Service Life (Operating Cycles) / Typical":"15 000","Arrangement Of Electrical Connectors / For Main Current Circuit":"Front connection"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"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=569114&mlfb=3VM1340-4ED42-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VM1340-4ED42-0AA0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VM1340-4ED42-0AA0?","answer":"This part is sourced through independent distribution and quoted to order against an RFQ. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm position."},{"question":"What is the breaking capacity of 3VM1340-4ED42-0AA0 at 415 V?","answer":"76 kA at 415 V AC, which also applies at 440 V. At 240 V it rises to 121 kA; at 500 V it drops to 53 kA."},{"question":"Will 3VM1340-4ED42-0AA0 drop into a panel specified around 5SQ2670-2YA06?","answer":"The 5SQ2670-2YA06 is a different manufacturer's frame — not a Siemens SENTRON part. The 3VM1340-4ED42-0AA0 uses the SENTRON mounting footprint (248×184×110 mm), so a direct mechanical swap depends on the existing panel's cutout and bus bar spacing. Check the mounting dimensions and bus connection pattern against your panel layout before ordering."},{"question":"What compliance documentation is available for this MCCB?","answer":"The product is designed to IEC 60947-2 (MCCB standard) and carries the SENTRON brand. Specific RoHS, REACH, and UL documentation should be requested at quote time — the evidence does not list individual cert numbers on this order code."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VM1340-4ED42-0AA0","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/3VM1340-4ED42-0AA0 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}}