{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1120-3ED22-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1120-3ED22-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1120-3ED22-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1120-3ED22-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1120-3ED22-0AA0, 2-pole molded case circuit breaker, 20 A rated current, 75.6 kA interrupting capacity at 240 V AC, thermal-magnetic TM210 release, IP40 front, current lifecycle.","salesMarkdown":"The Siemens SENTRON 3VA1120-3ED22-0AA0 is a 2-pole molded case circuit breaker rated for line protection, carrying 20 A continuously from 40 °C up to 55 °C without derating — at 60 °C it still holds 19 A, so in a warm enclosure you keep nearly full ampacity. The interrupting capacity is the headline: 75.6 kA at 240 V AC and 52.5 kA at 415 V AC, which means it can clear a fault upstream of a distribution panel without needing a current-limiting fuse ahead of it. That kind of SCCR headroom simplifies coordination studies for the site electrical engineer. ## Thermal-magnetic release and footprint That keeps the BOM simple but means you size the breaker to the load, not the other way around. The 50.8 mm width and 70 mm depth let it snap onto a standard DIN rail in a panel that's already tight on fill factor; the 130 mm height clears most gland-plate layouts.","metaTitle":"Siemens 3VA1120-3ED22-0AA0 SENTRON MCCB, 20 A, 2-Pole, 75.6","metaDescription":"Siemens SENTRON 3VA1120-3ED22-0AA0 molded case circuit breaker, 20 A at 40 °C, 2-pole, 75.6 kA at 240 V. Current lifecycle. Quoted to order. Request 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":"50.8 mm","Height":"130 mm","at 240 V":"75.6 kA","at 415 V":"52.5 kA","at 40 °C":"20 A","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]":"2 in","Height [In]":"5.12 in","Trip Indicator":"No","Number Of Poles":"2","Product version":"Line protection","Voltage Trigger":"No","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Undervoltage Release":"No","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"8 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","rated insulation voltage Ui":"500 V","Ground-Fault Monitoring Version":"Without","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","operating voltage / at AC / rated value":"415 V","Max. rated operational voltage Ue with DC":"250 V","reference code / according to IEC 81346-2":"Q","Product Extension / Optional / Motor Drive":"No","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":"N","Mechanical Service Life (Switching 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","Type of connectable conductor cross-section, connection screw, width x thickness , max.":"17 x 6,5 mm","Type of connectable conductor cross-section, connection screw, width x thickness , min.":"12 x 1 mm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/d7098a8d494d5147ca2d5962ad623bc2.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=234448&mlfb=3VA1120-3ED22-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1120-3ED22-0AA0/alternatives.json"},"ai":{"faq":[{"question":"What is the interrupting capacity of this MCCB?","answer":"75.6 kA at 240 V AC and 52.5 kA at 415 V AC, which covers most secondary-side fault scenarios without upstream fusing."},{"question":"Where can I buy 3VA1120-3ED22-0AA0 and how is it quoted?","answer":"Sourced through independent distribution and quoted to order against an RFQ — availability and current pricing are confirmed at quote time."},{"question":"Will 3VA1120-3ED22-0AA0 drop into a panel that was specified around 5SL4363-7 without rewiring?","answer":"No — the 5SL4363-7 is a miniature circuit breaker (MCB) with a different mounting footprint and lower interrupting capacity; the 3VA is a molded case breaker with a 50.8 mm width and higher SCCR, so it requires different bus-bar spacing and panel cutouts."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1120-3ED22-0AA0","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/3VA1120-3ED22-0AA0 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}}