{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1120-4GF42-0AA0-ZD00","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1120-4GF42-0AA0-ZD00","canonicalUrl":"https://aoctrl.com/siemens/3VA1120-4GF42-0AA0-ZD00","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1120-4GF42-0AA0-ZD00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 3VA1 IEC frame 160, breaking capacity class S, Icu=36kA @ 415V, 4-pole, line protection TM240, ATAM, In=20A, overload protection Ir=14A...20A, short-circuit protection Ii=8...16 x In, N conductor protection 100%, nut keeper kit for DC Power OEM in China.","salesMarkdown":"The Siemens 3VA1120-4GF42-0AA0-ZD00 is a 4-pole IEC frame 160 molded case circuit breaker from the 3VA1 series, configured for line protection with a TM240 thermal-magnetic trip unit. Rated In is 20 A, with overload protection adjustable from Ir=14 A to 20 A via the ATAM dial, and short-circuit protection fixed at Ii=8 to 16 times In (160 to 320 A). The N conductor is protected at 100% (full-rated), and the unit includes a nut keeper kit specified for DC Power OEM builds in China. ## Deployment context As a 4-pole IEC frame 160 MCCB, this breaker mounts into a panelboard or enclosure on a DIN rail or direct-mount base. The nut keeper kit indicates it is prepared for DC Power OEM integration, likely in a pre-wired assembly.","metaTitle":"Siemens 3VA1120-4GF42-0AA0-ZD00 Circuit Breaker, 36kA @ 415V","metaDescription":"Siemens 3VA1120-4GF42-0AA0-ZD00 IEC frame 160 circuit breaker, breaking capacity class S Icu=36kA @ 415V, 4-pole, In=20A. Current lifecycle stage. Available to order against 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/3b22d12829803e556c77fd75989124b8.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1667632&mlfb=3VA1120-4GF42-0AA0-ZD00","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1120-4GF42-0AA0-ZD00/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1120-4GF42-0AA0-ZD00 and get a price?","answer":"This part is sourced to order against an RFQ through our independent distribution channel. Submit a request for quote (RFQ) and we will confirm availability and current pricing at quote time."},{"question":"What is the breaking capacity (Icu) of this breaker?","answer":"The breaking capacity class S provides an Icu of 36 kA at 415 V AC, which is the maximum short-circuit current it can safely interrupt."},{"question":"What is the adjustable overload protection range?","answer":"Overload protection Ir is adjustable from 14 A to 20 A via the ATAM dial on the TM240 trip unit."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1120-4GF42-0AA0-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/3VA1120-4GF42-0AA0-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}}