{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA4120-4ED14-3AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA4120-4ED14-3AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA4120-4ED14-3AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA4120-4ED14-3AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 3VA4 UL Frame 125 circuit breaker, 1-pole, 20 A, 25 kA @ 277 V, line protection TM210, FTFM, In=20 A, Ir=20 A permanently set, Ii=15 x In.","salesMarkdown":"The Siemens 3VA4120-4ED14-3AA0 is a 1-pole molded-case circuit breaker from the 3VA4 UL Frame 125 family, rated 20 A continuous with a fixed overload setting (Ir = 20 A) and a short-circuit pickup of 15 × In (300 A). The FTFM (Fixed Thermal, Fixed Magnetic) design means both Ir and Ii are permanently set — no field-adjustable dials, no calibration drift. For a BOM line, this simplifies specification: what you order is what protects the circuit, every shot the same. The 3VA4 UL Frame 125 accepts plug-in accessories (auxiliary contacts, shunt trip, undervoltage release) that share the same mounting footprint across the frame size. If the panel design already uses 3VA4 breakers, this unit drops into the same DIN-rail adapter or screw-mount base without re-drilling the backplate. Export control is straightforward: AL: N / ECCN: EAR99 — no special licensing required for most destinations. RoHS compliant since May 2019; In a 277/480 V panel, this covers most branch circuits fed from a transformer up to about 150 kVA — enough for lighting panels, small motor control centers, and HVAC equipment. The fixed 15 × In short-circuit pickup (300 A for this 20 A unit) means the magnetic trip will not nuisance-trip on motor inrush or capacitor charging currents that stay below that multiple. For a circuit feeding a 20 A resistive load or a small motor with a nameplate FLA under 16 A, this pickup provides adequate protection without false trips.","metaTitle":"Siemens 3VA4120-4ED14-3AA0 Circuit Breaker, 20 A, 25 kA @ 27","metaDescription":"Siemens 3VA4120-4ED14-3AA0 circuit breaker, 1-pole, 20 A, 25 kA interrupting capacity at 277 V. Active production. RoHS compliant. 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":{"Group Code":"P360","Product Group":"5385","Product class":"C: products manufactured / produced to order, which cannot be reused or re-utilized or be returned against credit.","Quantity Unit":"1 Piece","Product Family":"Ordering Data Overview","lifecycle_stage":"current","Packaging Quantity":"1","Export Control Regulations":"AL : N / ECCN : EAR99","Packaging dimensions (L x W x H)":"472.00 x 396.00 x 213.00 mm","Compliance with the substance restrictions according to RoHS directive":"Since: 13-05-19","REACH Art. 33 Duty to inform according to the current list of candidates":"Lead CAS-No. 7439-92-1 > 0,1 % (w / w)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/d69e6b3b8396dc515f9b0ae09010e21c.pdf","sourceUrl":"https://sieportal.siemens.com/en-ae/products-services/detail/3VA4120-4ED14-3AA0?tree=CatalogTree","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA4120-4ED14-3AA0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy the 3VA4120-4ED14-3AA0 and how is it quoted?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Because it is a Product class C (made-to-order) item, availability and current pricing are confirmed at quote time — not from shelf stock."},{"question":"What compliance documentation does Siemens provide for this breaker?","answer":"RoHS compliant since May 2019. REACH Article 33 disclosure applies for lead (CAS 7439-92-1) above 0.1% w/w. Export classification is AL: N / ECCN: EAR99."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA4120-4ED14-3AA0","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/3VA4120-4ED14-3AA0 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}}