{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV1902-1AV0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV1902-1AV0","canonicalUrl":"https://aoctrl.com/siemens/3RV1902-1AV0","factsUrl":"https://aoctrl.com/api/mcp/products/3RV1902-1AV0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RV1902-1AV0 undervoltage release, 400 V AC/50 Hz, 440 V AC/60 Hz, for circuit breaker sizes S00, S0, S2, S3, snap-on mounting, IP20 finger-safe front.","salesMarkdown":"The Siemens SIRIUS 3RV1902-1AV0 is an undervoltage release designed for use with motor circuit breakers in sizes S00, S0, S2, and S3. It operates at 400 V AC at 50 Hz and 440 V AC at 60 Hz, with an insulation voltage rated at 690 V and pollution degree 3. This part is a phased-out product. The manufacturer lists the preferred successor as the SIRIUS 3RV2902-1AV0. ## Integration notes At 18.5 mm wide, it occupies a single modular slot in the panel. The front is IP20 finger-safe, so no additional cover is needed for vertical contact. The control supply voltage is AC only.","metaTitle":"Siemens 3RV1902-1AV0 SIRIUS undervoltage release, 400 V AC/5","metaDescription":"Siemens SIRIUS 3RV1902-1AV0 undervoltage release for motor circuit breakers S00–S3. 400 V AC/50 Hz, 440 V AC/60 Hz. Snap-on mount, IP20 front. Phased-out; successor 3RV2902-1AV0. S","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Motor Protection Circuit Breakers (MPCB)"],"specifications":{"Depth":"68 mm","Width":"18.5 mm","Height":"90 mm","During Storage":"-50 ... +80 °C","lifecycle_stage":"current","During Operation":"-20 ... +60 °C","Fastening Method":"snap-on mounting","Final Rated Value":"60 Hz","Product Brand Name":"SIRIUS","Degree Of Pollution":"3","Initial Rated Value":"50 Hz","Product Designation":"undervoltage release","Suitability For Use":"motor circuit breaker","at 50 Hz rated value":"400 V","at 60 Hz rated value":"440 V","Size Of The Circuit-Breaker":"S00, S0, S2, S3","Insulation Voltage Rated Value":"690 V","Design Of Short-Circuit Protection":"fuse","reference code acc. to DIN EN 61346-2":"F","Type Of Voltage Of The Control Supply Voltage":"AC","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","number of NO contacts for auxiliary contacts leading contact":"0","insulation voltage with degree of pollution 3 at AC rated value":"690 V","number of CO contacts of auxiliary contacts instantaneous contact":"0","number of NC contacts for auxiliary contacts instantaneous contact":"0","number of NO 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=149030&mlfb=3RV1902-1AV0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RV1902-1AV0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RV1902-1AV0 and how do I get a price?","answer":"The 3RV1902-1AV0 is sourced to order against an RFQ through independent distribution. Submit a request for quote to confirm current availability and pricing."},{"question":"Will 3RV1902-1AV0 drop into a panel specified around 3RT5034-1AR60 without rewiring?","answer":"No. The 3RT5034-1AR60 is a power contactor in size S2 with a 55 mm width and screw-type terminals. The 3RV1902-1AV0 is an 18.5 mm wide undervoltage release for motor circuit breakers. They serve different functions and have different footprints."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV1902-1AV0","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/3RV1902-1AV0 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}}