{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VM1340-4EE42-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VM1340-4EE42-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VM1340-4EE42-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VM1340-4EE42-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VM1340-4EE42-0AA0, molded case circuit breaker, 4-pole, 400 A rated at 40 °C, TM220 thermal-magnetic release, line protection design, IP40 front.","salesMarkdown":"The Siemens SENTRON 3VM1340-4EE42-0AA0 is a 4-pole molded case circuit breaker rated for 400 A continuous at 40 °C, with a TM220 thermal-magnetic release designed for line protection. It carries an interrupting capacity of 121 kA at 240 V, 76 kA at 415 V and 440 V, and 53 kA at 500 V — figures that define the fault-clearing capability at the point of installation and drive the upstream SCCR coordination study. ## Thermal Derating and Continuous Current The 400 A rating holds flat from 40 °C through 50 °C, then derates to 392 A at 55 °C, 384 A at 60 °C, 376 A at 65 °C, and 367 A at 70 °C. For a panel that runs warm — say, 55 °C ambient inside the enclosure — the breaker still carries 392 A continuous, which is the figure to use for the load schedule, not the 40 °C nameplate. The breaker measures 248 mm high, 184 mm wide, and 110 mm deep. These are the envelope dimensions for cutout planning and bus-bar spacing in the panel.","metaTitle":"Siemens 3VM1340-4EE42-0AA0 SENTRON MCCB, 400 A, 4-Pole, TM22","metaDescription":"Siemens SENTRON 3VM1340-4EE42-0AA0 molded case circuit breaker, 400 A at 40 °C, 4-pole, TM220 release. Interrupting 121 kA at 240 V. Current production. Quoted on 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","title":"3VM1340-4EE42-0AA0","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]":"7.24 in","Height [In]":"9.76 in","description":"circuit breaker 3VM1 IEC frame 400 breaking capacity class N Icu=36kA @ 415V 4-pole, line protection TM220, ATFM, In=400A overload protection Ir=280A...400A short-circuit protection Ii=10 x In N conductor unprotected nut keeper kit","Trip Indicator":"No","Number Of Poles":"4","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","design of the N-conductor protection":"Without","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=569116&mlfb=3VM1340-4EE42-0AA0"},"ai":{"faq":[{"question":"What is the interrupting capacity of 3VM1340-4EE42-0AA0 at 415 V?","answer":"76 kA at 415 V, and the same 76 kA at 440 V. At 240 V it reaches 121 kA, and at 500 V it is 53 kA."},{"question":"What does the TM220 release designation mean?","answer":"TM220 is a thermal-magnetic overcurrent release — the thermal element handles overload protection, the magnetic element handles short-circuit protection. It is fixed-trip, not electronic, so no adjustment dials or communication modules are present."},{"question":"Where can I buy 3VM1340-4EE42-0AA0 and how is it quoted?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."},{"question":"Will 3VM1340-4EE42-0AA0 drop into a panel specified for 3VA1112-5EE32-0AA0?","answer":"No — the 3VM1340 is a 4-pole, 400 A frame with a TM220 release, while the 3VA1112 is a different frame size and pole count. The mounting footprint, bus-bar spacing, and cutout dimensions differ; a panel designed for the 3VA1112 would require rework to accept this breaker."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VM1340-4EE42-0AA0","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/3VM1340-4EE42-0AA0 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}}