{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV1901-1DA00-0FQ0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV1901-1DA00-0FQ0","canonicalUrl":"https://aoctrl.com/siemens/3RV1901-1DA00-0FQ0","factsUrl":"https://aoctrl.com/api/mcp/products/3RV1901-1DA00-0FQ0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 3RV1901-1DA00-0FQ0, auxiliary switch transverse, 1 W, for circuit-breaker size S00...S3, Fa. Lovato.","salesMarkdown":"The Siemens 3RV1901-1DA00-0FQ0 is an auxiliary switch in a transverse mounting configuration, rated at 1 W, designed for use with circuit-breakers in the S00 through S3 frame sizes. It is a current-production item per the manufacturer's lifecycle stage. The 1 W rating is the switching capacity for the auxiliary contact — it governs the maximum load the switch can break in a control circuit. For a typical 24 VDC PLC input, that translates to roughly 40 mA; for a 230 VAC signal, about 4 mA. The transverse mounting orientation means the switch actuates perpendicular to the breaker's operating mechanism, which affects the physical clearance inside the enclosure — verify the swing arc against adjacent components. Compatibility spans the S00, S0, S1, S2, and S3 frame sizes of the 3RV series motor starter protectors and circuit-breakers. That covers the majority of Siemens motor feeder applications from fractional-horsepower up to about 30 kW at 400 VAC. The switch clips onto the left or right side of the breaker housing; no additional mounting hardware is required. For BOM freeze or PCN-watch purposes, this auxiliary switch carries no known replacement or supersession. It is the transverse variant of the standard auxiliary switch for the 3RV1 family; the longitudinal version (3RV1901-1DA00-0FQ1) uses the same contact block but a different actuation lever, so they are not mechanically interchangeable without changing the mounting position.","metaTitle":"Siemens 3RV1901-1DA00-0FQ0 Auxiliary Switch, 1 W, S00-S3","metaDescription":"Siemens 3RV1901-1DA00-0FQ0 auxiliary switch, transverse, 1 W, for circuit-breaker sizes S00 to S3. Lifecycle stage: current. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Motor Protection Circuit Breakers (MPCB)"],"specifications":{"lifecycle_stage":"current"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=231589&mlfb=3RV1901-1DA00-0FQ0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RV1901-1DA00-0FQ0/alternatives.json"},"ai":{"faq":[{"question":"What is 3RV1901-1DA00-0FQ0 used for?","answer":"It is a transverse-mounted auxiliary switch rated at 1 W, used to signal the status of Siemens 3RV series circuit-breakers in frame sizes S00 through S3."},{"question":"Where can I buy 3RV1901-1DA00-0FQ0?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV1901-1DA00-0FQ0","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/3RV1901-1DA00-0FQ0 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}}