{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV1922-1CU0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV1922-1CU0","canonicalUrl":"https://aoctrl.com/siemens/3RV1922-1CU0","factsUrl":"https://aoctrl.com/api/mcp/products/3RV1922-1CU0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS undervoltage release, 240 V AC 50 Hz, with leading auxiliary switch 2 NO, for circuit breaker Size S0...S3, IP20 finger-safe front.","salesMarkdown":"The Siemens SIRIUS 3RV1922-1CU0 is an undervoltage release designed for circuit breakers in Size S0 through S3. The front is finger-safe to IP20 per IEC 60529, meaning accidental contact from the front is protected against during normal panel access. The 240 V AC 50 Hz coil voltage is the critical fit parameter — this release drops out the circuit breaker when supply voltage falls below its dropout threshold, protecting motors and loads from undervoltage conditions. It mounts directly onto the front of SIRIUS 3RV1 circuit breakers in Size S0, S1, S2, or S3, snapping into the accessory slot without additional wiring to the main power path. The IP20 finger-safe front means it meets touch protection standards for vertical contact, so it can be placed in a panel with other live parts without requiring a separate cover over this accessory.","metaTitle":"Siemens 3RV1922-1CU0 SIRIUS Undervoltage Release, 240 V AC","metaDescription":"Siemens SIRIUS 3RV1922-1CU0 undervoltage release, 240 V AC 50 Hz, 2 NO auxiliary switch. Phased-out; successor is SIRIUS 3RV2. 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","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=154415&mlfb=3RV1922-1CU0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RV1922-1CU0/alternatives.json"},"ai":{"faq":[{"question":"What is 3RV1922-1CU0's product brand name?","answer":"The product brand name is SIRIUS, Siemens' modular industrial control component system."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV1922-1CU0","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/3RV1922-1CU0 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}}