{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV2922-1CP0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV2922-1CP0","canonicalUrl":"https://aoctrl.com/siemens/3RV2922-1CP0","factsUrl":"https://aoctrl.com/api/mcp/products/3RV2922-1CP0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS undervoltage release, 3RV2922-1CP0, 230 V AC/50 Hz, 240 V AC/60 Hz coil, 2 NO leading auxiliary contacts, screw-type terminals, for 3RV2 motor circuit breakers sizes S00, S0, S2, S3.","salesMarkdown":"## Undervoltage release for 3RV2 motor circuit breakers The Siemens 3RV2922-1CP0 is a SIRIUS undervoltage release designed as a snap-on accessory for 3RV2 motor circuit breakers in frame sizes S00, S0, S2, and S3. The coil is rated 230 V AC at 50 Hz and 240 V AC at 60 Hz, with a 50...60 Hz supply frequency range, so it covers both 50 Hz and 60 Hz installations without a separate coil change. It carries 2 normally-open (NO) leading auxiliary contacts, meaning the auxiliary circuit makes before the main contacts close and breaks after they open — useful for signaling the breaker state or interlocking a downstream contactor. The break time is rated at a maximum of 20 ms, fast enough to protect motor loads from sustained undervoltage conditions. ## Integration into a 3RV2 panel Snap-on mounting onto the 3RV2 breaker body — no separate DIN-rail footprint required. The release adds 19 mm width to the breaker assembly and extends depth to 68 mm. Screw-type terminals for the auxiliary and control circuit accept standard stranded or solid wire; no special tooling needed. The 690 V rated insulation voltage matches the 3RV2 breaker's own rating, so the release doesn't derate the assembly. Substance prohibitance date of 05/01/2012 indicates RoHS compliance per the EU directive; no separate REACH or UL listing is recorded in the spec sheet, but the SIRIUS series typically carries CE and UL/CSA marks (verify against your specific panel certification requirements).","metaTitle":"Siemens 3RV2922-1CP0 SIRIUS undervoltage release, 230 V AC 5","metaDescription":"Siemens 3RV2922-1CP0 SIRIUS undervoltage release for 3RV2 motor circuit breakers. 230 V AC/50 Hz, 240 V AC/60 Hz coil, 2 NO auxiliary contacts, snap-on DIN rail. Active production.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Motor Protection Circuit Breakers (MPCB)"],"specifications":{"Depth":"68 mm","Width":"19 mm","Height":"90 mm","Rated Value":"690 V","During Storage":"-50 ... +80 °C","Leading Contact":"2","lifecycle_stage":"current","During Operation":"-20 ... +60 °C","Fastening Method":"snap-on mounting","Break Time Maximum":"20 ms","Product Brand Name":"SIRIUS","Degree Of Pollution":"3","Product Designation":"undervoltage release","Suitability For Use":"motor circuit breaker","at 50 Hz rated value":"230 V","at 60 Hz rated value":"240 V","Design Of The Product":"with 2 auxiliary contacts","Instantaneous Contact":"0","Size Of The Circuit-Breaker":"S00, S0, S2, S3","Substance Prohibitance (Date)":"05/01/2012","Control Supply Voltage Frequency 1":"50 ... 60 Hz","Design Of Short-Circuit Protection":"fuse","reference code according to EN 61346-2":"F","with degree of pollution 3 at AC rated value":"690 V","Type Of Voltage Of The Control Supply Voltage":"AC","Type Of Electrical Connection For Auxiliary And Control Circuit":"screw-type terminals","number of CO contacts of auxiliary contacts instantaneous contact":"0","number of NC contacts for auxiliary contacts instantaneous contact":"0"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/ef49b91135970530b4eecc1e61fdf1fe.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=98546&mlfb=3RV2922-1CP0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RV2922-1CP0/alternatives.json"},"ai":{"faq":[{"question":"What is the width and depth of 3RV2922-1CP0?","answer":"Width is 19 mm and depth is 68 mm. It snaps onto the 3RV2 breaker body, so the overall assembly width is the breaker width plus 19 mm."},{"question":"Will 3RV2922-1CP0 work with a 3RT6025-1AL20 contactor?","answer":"No. The 3RV2922-1CP0 is an undervoltage release for 3RV2 motor circuit breakers only (frame sizes S00, S0, S2, S3). It does not mount on SIRIUS contactors like the 3RT6025-1AL20. For contactor undervoltage releases, use the 3RT2 series accessories."},{"question":"What compliance documentation does Siemens provide for 3RV2922-1CP0?","answer":"The part carries a substance prohibitance date of 05/01/2012, indicating RoHS compliance. No separate UL, CSA, or REACH listing is recorded in the spec sheet; typical SIRIUS products carry CE, UL, and CSA marks — verify against your specific certification requirements."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV2922-1CP0","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/3RV2922-1CP0 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}}