{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VM1040-4ED32-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VM1040-4ED32-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VM1040-4ED32-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VM1040-4ED32-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VM1040-4ED32-0AA0, molded case circuit breaker, 3-pole, 400 A, TM210 overcurrent release, line protection design, IP40 front.","salesMarkdown":"This is the breaker you spec into a main feeder or heavy branch circuit where you need a single interrupting device that can handle the full load and clear faults fast. The TM210 overcurrent release means it uses a thermal-magnetic trip — thermal for overloads, magnetic for short-circuits — no electronic adjustments, no communication module, just a straightforward, field-reliable trip curve. The IP40 front protection keeps tools and fingers out of the live terminals but isn't rated for washdown — this lives inside a dry enclosure. At 240 V, the interrupting rating is 121 kA. That drops to 76 kA at 415 V, 40 kA at 440 V, and 12 kA at 500 V. The 12 kA at 500 V is the limiting case; don't put this on a 500 V bus with more than 12 kA available unless you've got a current-limiting upstream device. ## Thermal Derating — Don't Ignore the Cabinet Temperature At 55 °C it's 39 A, at 60 °C it's 39 A, at 65 °C it's 38 A, and at 70 °C it's 37 A. If your panel ambient runs 65 °C (tight enclosure, solar load, next to a furnace line), you lose 3 A from the nameplate. That's a 7.5% reduction — enough to nuisance-trip if you sized the load right at 40 A. Always size the breaker for the actual cabinet temperature, not the 40 °C rating. Depth is 70 mm, width is 76.2 mm, height is 130 mm. That's a compact footprint for a 400 A frame — it fits standard distribution panel gutters without crowding the bend radius on incoming cables. The 3-pole block takes up about 3 inches of rail space.","metaTitle":"Siemens 3VM1040-4ED32-0AA0 SENTRON MCCB, 400 A, 3-Pole, Line","metaDescription":"Siemens SENTRON 3VM1040-4ED32-0AA0 molded case circuit breaker, 400 A, 3-pole, TM210 release. Breaking capacity 121 kA at 240 V. Current production. 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":"70 mm","Width":"76.2 mm","title":"3VM1040-4ED32-0AA0","Height":"130 mm","Maximum":"400 A","Minimum":"1 s","at 240 V":"121 kA","at 415 V":"76 kA","at 440 V":"40 kA","at 500 V":"12 kA","at 40 °C":"40 A","at 45 °C":"40 A","at 50 °C":"40 A","at 55 °C":"39 A","at 60 °C":"39 A","at 65 °C":"38 A","at 70 °C":"37 A","Depth [In]":"2.76 in","Width [In]":"3 in","Height [In]":"5.12 in","description":"circuit breaker 3VM1 IEC frame 100 breaking capacity class S Icu=36kA @ 415V 3-pole, line protection TM210, FTFM, In=40A overload protection Ir=40A, not adjustable 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":"14 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":"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","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":"12 000","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/f442c62a359ea0430314b1ce7ba54323.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=575014&mlfb=3VM1040-4ED32-0AA0"},"ai":{"faq":[{"question":"Where can I buy 3VM1040-4ED32-0AA0 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 — submit an RFQ for the latest lead time and price."},{"question":"What is the breaking capacity of 3VM1040-4ED32-0AA0 at 240 V?","answer":"At 240 V, the interrupting rating is 121 kA. At 415 V it's 76 kA, at 440 V it's 40 kA, and at 500 V it's 12 kA."},{"question":"What is the depth of 3VM1040-4ED32-0AA0?","answer":"The depth is 70 mm (2.76 inches). Width is 76.2 mm (3 inches), height is 130 mm (5.12 inches)."},{"question":"Will 3VM1040-4ED32-0AA0 drop into a panel specified around 3VA1110-5ED32-0AA0?","answer":"The 3VM1040 is a different frame series than the 3VA1110 — the 3VA series uses electronic trip units and has different mounting dimensions and accessory compatibility. Mechanical fit is not guaranteed without checking the panel cutout and bus bar spacing against the 70 mm depth and 76.2 mm width of the 3VM."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VM1040-4ED32-0AA0","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/3VM1040-4ED32-0AA0 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}}