{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV2922-2CP0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV2922-2CP0","canonicalUrl":"https://aoctrl.com/siemens/3RV2922-2CP0","factsUrl":"https://aoctrl.com/api/mcp/products/3RV2922-2CP0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RV2922-2CP0 undervoltage release, 230 V AC/50 Hz, 240 V AC/60 Hz, with 2 NO leading auxiliary contacts, spring-type terminals, for 3RV2 circuit breakers sizes S00, S0, S2, S3.","salesMarkdown":"The Siemens SIRIUS 3RV2922-2CP0 is an undervoltage release for the 3RV2 motor circuit breaker family. It drops the breaker when control voltage falls below the dropout threshold. The 50/60 Hz frequency range means it works on either grid without a separate transformer tap. Snap-on mounting onto a DIN rail — no tools needed for installation. The 18.5 mm width and 68 mm depth fit into a crowded panel. ## Integration with 3RV2 Breakers This release clips onto the left side of any 3RV2 motor circuit protector in frame sizes S00, S0, S2, or S3. The 2 NO leading contacts close before the main contacts engage, giving the control system a status signal that the undervoltage coil is healthy before the motor can start.","metaTitle":"Siemens 3RV2922-2CP0 SIRIUS Undervoltage Release, 230VAC 50/","metaDescription":"Siemens SIRIUS 3RV2922-2CP0 undervoltage release for 3RV2 breakers. 230VAC/50Hz, 240VAC/60Hz, 2 NO leading contacts, spring terminals. Active production, sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Motor Protection Circuit Breakers (MPCB)"],"specifications":{"Depth":"68 mm","Width":"18.5 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","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":"spring-loaded 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":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=56531&mlfb=3RV2922-2CP0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RV2922-2CP0/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV2922-2CP0","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/3RV2922-2CP0 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}}