{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1120-3GD46-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1120-3GD46-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1120-3GD46-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1120-3GD46-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1120-3GD46-0AA0, molded case circuit breaker, 4-pole, 20 A rated continuous current (Iu), TM210 overcurrent release, breaking capacity 75.6 kA at 240 V.","salesMarkdown":"The 3VA1120-3GD46-0AA0: The 20 A rating holds at ambient temperatures up to 55 °C; at 60 °C it derates to 19 A, and stays at 19 A through 70 °C. That's a clean thermal curve — no surprise drop at 40 °C like some compact MCCBs. The TM210 release means the thermal pickup is fixed, but the magnetic instantaneous trip is adjustable up to 320 A (li max), which gives you room to coordinate with motor inrush or transformer magnetizing current without nuisance tripping. Front-face IP40 protection means it's fine inside a standard IP54 or IP65 enclosure — the breaker itself doesn't need a separate sealed cover. The 4-pole width (101.6 mm) is roughly 4 inches, so it occupies the same footprint as other SENTRON 4-pole MCCBs; if you're swapping from a 3VA2 series, check the lug kit and terminal spacing because the mounting hole pattern may differ.","metaTitle":"Siemens 3VA1120-3GD46-0AA0 SENTRON MCCB, 20A, 4-Pole, 75.6kA","metaDescription":"Siemens SENTRON 3VA1120-3GD46-0AA0 molded case circuit breaker, 20 A rated, 4-pole, breaking capacity 75.6 kA at 240 V. Active production. Quoted 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":"75.6 kA","at 415 V":"52.5 kA","at 440 V":"32 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]":"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":"100%","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":"N","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, round conductor terminal, stranded":"1 x (1.5 - 70 mm²)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=270671&mlfb=3VA1120-3GD46-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1120-3GD46-0AA0/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 3VA1120-3GD46-0AA0 at different voltages?","answer":"Breaking capacity is 75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 11.9 kA at both 500 V and 690 V."},{"question":"Where can I buy 3VA1120-3GD46-0AA0 and how is it quoted?","answer":"This part is sourced through independent distribution and quoted to order against an RFQ. Availability and current pricing are confirmed at quote time."},{"question":"What compliance documentation is available for this breaker?","answer":"RoHS, REACH, UL, and IEC compliance documentation is available from the manufacturer's support portal for the SENTRON 3VA series."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1120-3GD46-0AA0","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/3VA1120-3GD46-0AA0 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}}