{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1120-6EF46-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1120-6EF46-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1120-6EF46-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1120-6EF46-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1120-6EF46-0AA0, 4-pole molded case circuit breaker, 20 A rated at 40 °C, 220 kA breaking capacity at 240 V, TM240 overcurrent release.","salesMarkdown":"The TM240 overcurrent release combines thermal-magnetic trip elements for overload and short-circuit protection. Interrupting rating drops as voltage rises: 154 kA at 415 V, 121 kA at 440 V, and 17 kA at 500 V and 690 V. ## Thermal derating and ambient range The breaker holds 20 A from 40 °C through 55 °C without derating. At 60 °C and 65 °C it drops to 19 A; at 70 °C it stays at 19 A. For panels near ovens or outdoor enclosures in direct sun, the 19 A floor at 70 °C is the safe continuous limit. Four-pole MCCBs of this width typically mount on a DIN rail or bolt directly to a panel backplate.","metaTitle":"Siemens 3VA1120-6EF46-0AA0 SENTRON MCCB, 4P, 20A, 220 kA at","metaDescription":"Siemens SENTRON 3VA1120-6EF46-0AA0 molded case circuit breaker, 4-pole, 20 A rated at 40 °C, 220 kA breaking capacity at 240 V. TM240 release. Active production. Sourced to order a","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","Maximum":"0 A","Minimum":"0 A","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 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]":"4 in","Height [In]":"5.12 in","Trip Indicator":"No","Number Of Poles":"4","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":"12 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":"TM240","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","Product Function / Grounding Protection":"No","operating voltage / at AC / rated value":"690 V","operating voltage / at DC / rated value":"600 V","reference code / according to IEC 81346-2":"Q","Product Extension / Optional / Motor Drive":"Yes","Protection Function Of The Overcurrent Release":"LI","number of CO contacts / for auxiliary contacts":"0","Switching Capacity Class Of The Circuit Breaker":"H","Mechanical Service Life (Operating Cycles) / Typical":"20 000","Type Of Electrical Connection / For Main Current Circuit":"box terminal on both sides","Arrangement Of Electrical Connectors / For Main Current Circuit":"Front terminal"}},"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=201158&mlfb=3VA1120-6EF46-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1120-6EF46-0AA0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1120-6EF46-0AA0?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm commitment."},{"question":"What is the breaking capacity of 3VA1120-6EF46-0AA0 at 240 V?","answer":"220 kA at 240 V. At 415 V it is 154 kA, at 440 V it is 121 kA, and at 500 V and 690 V it is 17 kA."},{"question":"What is the rated current of 3VA1120-6EF46-0AA0?","answer":"20 A continuous at 40 °C through 55 °C, derating to 19 A at 60 °C through 70 °C."},{"question":"What is the depth of 3VA1120-6EF46-0AA0?","answer":"70 mm (2.76 in)."},{"question":"What is the width of 3VA1120-6EF46-0AA0?","answer":"101.6 mm (4 in)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1120-6EF46-0AA0","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/3VA1120-6EF46-0AA0 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}}