{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA4120-6ED24-1AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA4120-6ED24-1AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA4120-6ED24-1AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA4120-6ED24-1AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA4120-6ED24-1AA0, molded-case circuit breaker, 2-pole, 20 A rated at 40 °C, TM210 thermal-magnetic trip unit, 100 kA interrupting at 240 V AC.","salesMarkdown":"## Siemens 3VA4120-6ED24-1AA0 — 20 A SENTRON MCCB, 2-Pole, 100 kA IC The Siemens 3VA4120-6ED24-1AA0 is a SENTRON molded-case circuit breaker (MCCB) rated for 20 A continuous at 40 °C, with a 2-pole configuration and a TM210 thermal-magnetic trip unit. It carries a 100 kA interrupting capacity at 240 V AC, stepping down to 65 kA at 480 V AC and 25 kA at 600 Y/347 V AC — numbers that tell you this breaker is built for high-fault panels where upstream coordination matters. The 20 A rating holds flat from 40 °C to 55 °C, then derates to 19 A at 60–65 °C and 18 A at 70 °C. That thermal curve is the one you size against — if your panel ambient runs 60 °C, you're actually getting 19 A of headroom, not 20. Interrupting ratings are given at multiple voltage points: 100 kA at 240 V, 65 kA at 480 V and at 480 Y/277 V, and 25 kA at 600 Y/347 V. That spread tells you the breaker's arc extinction is voltage-dependent — at higher line-to-line voltages the available fault current it can safely clear drops. Power loss is 5.6 W maximum, which is modest for a 20 A frame and won't drive cabinet cooling decisions. The breaker measures 50.8 mm wide, 129.4 mm high, and 75.1 mm deep — a 2-inch wide footprint that fits standard 2-pole MCCB panel slots. Depth of 75.1 mm (2.96 in) means it clears most 4-inch deep enclosures without a sub-panel extension.","metaTitle":"Siemens 3VA4120-6ED24-1AA0 SENTRON MCCB, 20 A, 2-Pole, 100 k","metaDescription":"Siemens 3VA4120-6ED24-1AA0 SENTRON molded-case circuit breaker, 20 A rated, 2-pole, TM210 trip unit. Interrupting capacity 100 kA at 240 V AC. Current production. Sourced to order","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"75.1 mm","Width":"50.8 mm","Height":"129.4 mm","Maximum":"1 s","Minimum":"1 s","at 240 V":"100 kA","at 480 V":"65 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":"18 A","Depth [In]":"2.96 in","Width [In]":"2 in","Height [In]":"5.09 in","Trip Indicator":"No","at 480 Y/277 V":"65 kA","at 600 Y/347 V":"25 kA","Number Of Poles":"2","Voltage Trigger":"No","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded-case circuit breaker","Undervoltage Release":"No","Design Of The Product":"System protection","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"5.6 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","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","Product Function / Grounding Protection":"No","operating voltage / at AC / rated value":"415 V","Product Extension / Optional / Motor Drive":"No","product designation / according to UL file":"HEAM","Protection Function Of The Overcurrent Release":"LI","number of CO contacts / for auxiliary contacts":"0","Switching Capacity Class Of The Circuit Breaker":"H","electrical endurance (operating cycles) / at 480 V":"8 000","electrical endurance (operating cycles) / at 600 V":"4 000","marking / according to UL 489 / 100%-rated breaker":"No","Mechanical Service Life (Operating Cycles) / Typical":"15 000","Type Of Electrical Connection / For Main Current Circuit":"Infeed side: Low tab"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/d69e6b3b8396dc515f9b0ae09010e21c.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1058156&mlfb=3VA4120-6ED24-1AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA4120-6ED24-1AA0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy the 3VA4120-6ED24-1AA0 and get current pricing?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm commercial response."},{"question":"What is the interrupting capacity of this breaker at 240 V?","answer":"The 3VA4120-6ED24-1AA0 is rated for 100 kA interrupting capacity at 240 V AC, dropping to 65 kA at 480 V AC and 25 kA at 600 Y/347 V AC."},{"question":"What compliance documentation is available for this MCCB?","answer":"As a Siemens SENTRON product, the 3VA4120-6ED24-1AA0 carries the usual IEC/UL certifications for molded-case circuit breakers. Specific documentation (RoHS, REACH, UL, IEC) is available through the manufacturer's standard documentation portal."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA4120-6ED24-1AA0","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/3VA4120-6ED24-1AA0 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}}