{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1040-4ED32-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1040-4ED32-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1040-4ED32-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1040-4ED32-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1040-4ED32-0AA0, molded case circuit breaker, 3-pole, 40 A rated current, TM210 release, 121 kA breaking capacity at 240 V, line protection.","salesMarkdown":"Its TM210 thermal-magnetic release provides overload and short-circuit protection for feeders and branch circuits. The 40 A rating holds up to 40 A at 40 °C ambient, derating to 37 A at 70 °C — the thermal curve matters when the breaker is packed into a warm enclosure alongside other heat sources. This MCCB delivers 121 kA at 240 V, 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at both 500 V and 690 V. For a 415 V panel fed from a transformer with a prospective short-circuit current of, say, 50 kA, the 75.6 kA rating gives headroom for selectivity with upstream fuses or a larger MCCB. The 3VA1040-4ED32-0AA0 measures 130 mm high, 76.2 mm wide, and 70 mm deep — a standard 3-pole MCCB footprint that mounts on a DIN rail or directly to a backplate. The TM210 release is factory-set and non-adjustable, so coordination studies should treat the trip curve as fixed.","metaTitle":"Siemens 3VA1040-4ED32-0AA0 SENTRON MCCB, 40 A, 121 kA at 240","metaDescription":"Siemens SENTRON 3VA1040-4ED32-0AA0 molded case circuit breaker, 40 A rated current, 121 kA breaking capacity at 240 V. Line protection, TM210 release, 3-pole. Sourced to order.","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":"3VA1040-4ED32-0AA0","Height":"130 mm","Maximum":"0 A","Minimum":"0 A","at 240 V":"121 kA","at 415 V":"75.6 kA","at 440 V":"52.5 kA","at 500 V":"11.9 kA","at 690 V":"11.9 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 3VA1 IEC frame 100 breaking capacity class S Icu=36kA @ 415V 3-pole, line protection TM210, FTFM, In=40A overload protection Ir=40A fixed 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":"10.8 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 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","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":"20 000","Type Of Electrical Connection / For Main Current Circuit":"nut keeper kit on both ends","Arrangement Of Electrical Connectors / For Main Current Circuit":"Front terminal"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$86.36","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/3bb8a750afee71ac67dad2b8998fe4e3.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=226635&mlfb=3VA1040-4ED32-0AA0"},"ai":{"faq":[{"question":"What is the breaking capacity of 3VA1040-4ED32-0AA0 at 415 V?","answer":"The breaking capacity at 415 V is 75.6 kA, which provides ample headroom for most industrial distribution panels at that voltage level."},{"question":"Where can I buy 3VA1040-4ED32-0AA0?","answer":"This part is sourced to order against an RFQ through independent distribution; availability and current pricing are confirmed at quote time."},{"question":"What is the rated current of 3VA1040-4ED32-0AA0 at 40 °C?","answer":"The rated current is 40 A at 40 °C ambient, with a thermal derating curve that drops to 37 A at 70 °C."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1040-4ED32-0AA0","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/3VA1040-4ED32-0AA0 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}}