{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1120-6ED42-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1120-6ED42-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1120-6ED42-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1120-6ED42-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1120-6ED42-0AA0, molded case circuit breaker, 4-pole, 20 A rated, TM210 thermal-magnetic release, 220 kA interrupting at 240 V.","salesMarkdown":"At 415 V it still holds 154 kA, and at 440 V it delivers 121 kA; those numbers drop to 17 kA at 500 V and 690 V, so the part is really built for 240–440 V distribution where the SCCR requirement is severe. ## Thermal derating and the TM210 release The TM210 release provides fixed thermal and magnetic pickup — no field-adjustable long-time or short-time bands, which simplifies ordering but means you size it to the load, not tune it. The 20 A rating holds steady from 45 °C up to 55 °C; above that it derates to 19 A at 60 °C, 65 °C, and 70 °C. If your panel ambient runs near 60 °C, factor that 19 A ceiling into the load schedule. The adjustable instantaneous magnetic pickup (li max) goes to 320 A, which is 16× the continuous rating — that keeps the breaker from nuisance-tripping on motor inrush or capacitor charging currents. The breaker measures 70 mm deep, 101.6 mm wide, and 130 mm high — a compact 4-pole footprint that fits standard Siemens SENTRON mounting plates and panel cutouts.","metaTitle":"Siemens 3VA1120-6ED42-0AA0 SENTRON MCCB, 4P, 20 A, 220 kA","metaDescription":"Siemens SENTRON 3VA1120-6ED42-0AA0 molded case circuit breaker, 4-pole, 20 A, TM210 release, 220 kA at 240 V. Current lifecycle. 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":"101.6 mm","Height":"130 mm","at 240 V":"220 kA","at 415 V":"154 kA","at 440 V":"121 kA","at 500 V":"17 kA","at 690 V":"17 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]":"4 in","Height [In]":"5.12 in","Number Of Poles":"4","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","design of the N-conductor protection":"Without","reference code / acc. to IEC 81346-2":"Q","Max. rated operational voltage Ue with DC":"600 V","Product Extension / Optional / Motor Drive":"Yes","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":"H","Max. rated operational current of the frame size":"160 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, 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/bd920be2eee48e1359575fab6d9b5a33.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=330997&mlfb=3VA1120-6ED42-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1120-6ED42-0AA0/alternatives.json"},"ai":{"faq":[{"question":"What is the depth of 3VA1120-6ED42-0AA0?","answer":"The listed depth is 70 mm (2.76 in)."},{"question":"What is the width of 3VA1120-6ED42-0AA0?","answer":"The listed width is 101.6 mm (4 in)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1120-6ED42-0AA0","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/3VA1120-6ED42-0AA0 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}}