{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1020-4ED36-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1020-4ED36-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1020-4ED36-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1020-4ED36-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1020-4ED36-0AA0, 3-pole molded case circuit breaker, 20 A rated, TM210 thermal-magnetic release, 121 kA breaking capacity at 240 V.","salesMarkdown":"The 3VA1020-4ED36-0AA0: Breaking capacity is the standout figure here: 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. That makes this a high-interrupting-capacity frame for a 20 A rating — useful at the service entrance or in a panel fed by a transformer with high available fault current, where a standard 25 kA or 36 kA MCCB would need upstream fusing or a current-limiting reactor. The part holds its full 20 A rating from 45 °C up through 55 °C ambient, then derates to 19 A at 60 °C and 65 °C, and stays at 19 A at 70 °C. That's a tight derating curve — only 5 % loss at the top of the operating range — which means you can load it near nameplate in a warm panel without oversizing. Front protection IP40. Rated insulation voltage 800 V. Lifecycle stage is marked as current production — no phase-out notice on this variant.","metaTitle":"Siemens 3VA1020-4ED36-0AA0 SENTRON MCCB, 20A, 3-Pole, 121kA","metaDescription":"Siemens 3VA1020-4ED36-0AA0 SENTRON molded case circuit breaker, 20A rated, 3-pole, TM210 release, 121kA at 240V. 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","Height":"130 mm","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 45 °C":"20 A","at 50 °C":"20 A","at 55 °C":"20 A","at 60 °C":"19 A","at 65 °C":"19 A","at 70 °C":"19 A","Depth [In]":"2.76 in","Width [In]":"3 in","Height [In]":"5.12 in","Number Of Poles":"3","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":"12 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Courant permanent assigné Iu":"20 A","Ground-Fault Monitoring Version":"Without","Tension assignée d'isolement Ui":"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","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.":"320 A","Adjustable response value current / li min.":"320 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":"100 A","Mechanical Service Life (Operating Cycles) / Typical":"20 000","Arrangement Of Electrical Connectors / For Main Current Circuit":"Front terminal","Type of connectable conductor cross-section, round conductor terminal, stranded":"1 x (1.5 - 70 mm²)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/4e9808d753fd0aed71292b6640851fc1.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=465077&mlfb=3VA1020-4ED36-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1020-4ED36-0AA0/alternatives.json"},"ai":{"faq":[{"question":"Will 3VA1020-4ED36-0AA0 drop into a panel specified around 3VA1020-3ED36-0AA0?","answer":"Yes, the mechanical footprint is identical — same height, width, depth, and mounting pattern. No rewiring needed; the difference is only in the interrupting capacity rating."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1020-4ED36-0AA0","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/3VA1020-4ED36-0AA0 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}}