{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1020-3ED42-0AA0-ZD00","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1020-3ED42-0AA0-ZD00","canonicalUrl":"https://aoctrl.com/siemens/3VA1020-3ED42-0AA0-ZD00","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1020-3ED42-0AA0-ZD00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 3VA1 IEC frame 100, 4-pole circuit breaker, breaking capacity class N, Icu=25kA @ 415V, In=20A, TM210, FTFM, fixed Ir=20A, fixed Ii=16 x In.","salesMarkdown":"The Siemens 3VA1020-3ED42-0AA0-ZD00 is a 4-pole IEC frame 100 circuit breaker from the 3VA1 series, rated at 20 A with a 25 kA breaking capacity at 415 V (class N). This is a line-protection device with a fixed thermal-magnetic trip unit (TM210, FTFM), meaning the overload protection Ir is fixed at 20 A and the short-circuit protection Ii is fixed at 16 times In (320 A). For a 20 A line protection breaker on a 415 V three-phase supply, this gives substantial SCCR headroom in most distribution panels. The fixed thermal setting (Ir = In = 20 A) means no adjustment dial; the breaker trips at exactly its rated current on overload. The fixed magnetic pickup at 16 x In (320 A) is typical for line protection, clearing high-impedance faults fast without nuisance tripping on motor inrush. This class of IEC molded-case circuit breaker is used in distribution boards, panelboards, and OEM machinery enclosures for branch-circuit protection on 415 V three-phase supplies. The nut keeper kit and DC Power OEM designation suggest it was specified for a Chinese OEM integrating into a DC power supply or UPS cabinet — the breaker itself is AC-rated, but the accessory kit and OEM variant code (ZD00) align with that supply chain.","metaTitle":"Siemens 3VA1020-3ED42-0AA0-ZD00 Circuit Breaker, 25kA @ 415V","metaDescription":"Siemens 3VA1020-3ED42-0AA0-ZD00 IEC frame 100 circuit breaker, 25kA Icu @ 415V, 4-pole, 20A fixed thermal-magnetic. Current lifecycle stage. Sourced to order.","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/43bfd9bb96b4267ccb9ca1bdc8a39000.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1667462&mlfb=3VA1020-3ED42-0AA0-ZD00","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1020-3ED42-0AA0-ZD00/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of this breaker?","answer":"The ultimate short-circuit breaking capacity (Icu) is 25 kA at 415 V, which is the class N rating for the 3VA1 IEC frame 100 platform."},{"question":"Where can I buy 3VA1020-3ED42-0AA0-ZD00 and how is it quoted?","answer":"This part is sourced to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What does the ZD00 suffix and nut keeper kit mean?","answer":"The ZD00 suffix is a Siemens OEM variant code, and the nut keeper kit is an accessory for secure mounting. The description specifies this variant for DC Power OEM applications in China."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1020-3ED42-0AA0-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/3VA1020-3ED42-0AA0-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}}