{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1120-3EF32-0AA0-ZD00","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1120-3EF32-0AA0-ZD00","canonicalUrl":"https://aoctrl.com/siemens/3VA1120-3EF32-0AA0-ZD00","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1120-3EF32-0AA0-ZD00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 3VA1 IEC frame 160, 3-pole circuit breaker, breaking capacity class N, Icu=25kA @ 415V, line protection TM240, ATAM, In=20A, overload protection Ir=14A...20A, short-circuit protection Ii=8...16 x In, nut keeper kit for DC Power OEM in China.","salesMarkdown":"The Siemens 3VA1120-3EF32-0AA0-ZD00 is a 3VA1 IEC frame 160, 3-pole molded case circuit breaker (MCCB) with a 20 A rated current (In) and a 25 kA ultimate breaking capacity (Icu) at 415 V AC, classification N. The thermal-magnetic trip unit (TM240) provides adjustable overload protection (Ir) from 14 A to 20 A, letting you fine-tune the continuous current threshold to match the downstream cable or load without swapping the breaker body. The short-circuit magnetic pickup (Ii) is fixed at 8 to 16 times In (160 A to 320 A), which is typical for motor and distribution feeder protection — high enough to avoid nuisance trips on inrush, low enough to clear a bolted fault fast. This variant includes a nut keeper kit and is designated for a DC Power OEM in China, so the hardware package is pre-configured for that assembly line. The breaker itself is standard 3VA1 platform — same frame, same breaking capacity, same trip curve — the ZD00 suffix flags the OEM-specific accessory kit. ## Deployment context — where this breaker fits The 3-pole configuration suits three-phase circuits — feeder protection for a 20 A motor branch, a lighting panel, or a small distribution sub-panel in a 415 V industrial installation. If your system's prospective short-circuit current is higher, you need a higher-rated upstream device or a current-limiting breaker.","metaTitle":"Siemens 3VA1120-3EF32-0AA0-ZD00 Circuit Breaker, 20A, 25kA @","metaDescription":"Siemens 3VA1120-3EF32-0AA0-ZD00 IEC frame 160 circuit breaker, 3-pole, 20A, 25kA breaking capacity @ 415V. Current lifecycle stage. Quoted to order. Request RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"lifecycle_stage":"current"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/72b53daf9c8a705c31d96891ddabaed4.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1667619&mlfb=3VA1120-3EF32-0AA0-ZD00","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1120-3EF32-0AA0-ZD00/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy the 3VA1120-3EF32-0AA0-ZD00 and get a price?","answer":"This part is sourced to order against an RFQ through independent and authorized distribution. Submit a request for quote (RFQ) to confirm availability and current pricing at the time of your order."},{"question":"What is the breaking capacity of this breaker?","answer":"The ultimate breaking capacity (Icu) is 25 kA at 415 V AC, which is the maximum fault current the breaker can safely interrupt once without damage."},{"question":"What does the TM240 trip unit mean?","answer":"TM240 is a thermal-magnetic trip unit with adjustable overload protection (Ir) from 14 A to 20 A and a fixed short-circuit pickup (Ii) of 8 to 16 times In (160 A to 320 A), providing both long-time and instantaneous protection for cable and load."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1120-3EF32-0AA0-ZD00","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/3VA1120-3EF32-0AA0-ZD00 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}}