{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV1922-1CB0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV1922-1CB0","canonicalUrl":"https://aoctrl.com/siemens/3RV1922-1CB0","factsUrl":"https://aoctrl.com/api/mcp/products/3RV1922-1CB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS undervoltage release, 24 V AC 50 Hz, with leading auxiliary switch 2 NO, for circuit breaker sizes S0 to S3, IP20 finger-safe front.","salesMarkdown":"The Siemens SIRIUS 3RV1922-1CB0 is an undervoltage release designed to drop a circuit breaker when supply voltage falls below its holding threshold. The front is finger-safe to IP20 per IEC 60529, meaning accidental contact with live terminals during panel work is protected against — a standard requirement for control cabinets where operators reach in. Mounts onto the front of a SIRIUS 3RV2 motor starter protector or 3RV2 circuit breaker in frame sizes S0 through S3. The IP20 finger-safe front means no additional cover is needed for the release terminals in a standard IP20 panel. The 2 NO auxiliary switch signals the undervoltage condition back to a PLC or status lamp — useful for a commissioning engineer verifying the drop-out sequence during FAT.","metaTitle":"Siemens 3RV1922-1CB0 SIRIUS undervoltage release, 24 V AC, p","metaDescription":"Siemens SIRIUS 3RV1922-1CB0 undervoltage release, 24 V AC 50 Hz, with 2 NO auxiliary switch. Phased-out product. Sourced to order against RFQ. Successor: 3RV2922-1CB0.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Motor Protection Circuit Breakers (MPCB)"],"specifications":{"lifecycle_stage":"current","Product Brand Name":"SIRIUS","Product Designation":"undervoltage release","touch protection on the front acc. to IEC 60529":"finger-safe, for vertical contact from the front","protection class IP on the front acc. to IEC 60529":"IP20"}},"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=290964&mlfb=3RV1922-1CB0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RV1922-1CB0/alternatives.json"},"ai":{"faq":[{"question":"What replaces 3RV1922-1CB0?","answer":"The official successor is SIRIUS 3RV2922-1CB0. It serves the same function — undervoltage release with 2 NO auxiliary switch for Size S0 to S3 breakers at 24 V AC."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV1922-1CB0","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/3RV1922-1CB0 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}}