{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV1902-1AS0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV1902-1AS0","canonicalUrl":"https://aoctrl.com/siemens/3RV1902-1AS0","factsUrl":"https://aoctrl.com/api/mcp/products/3RV1902-1AS0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS undervoltage release, 3RV1902-1AS0, 500 V AC/50 Hz, 575 V AC/60 Hz, for circuit breaker sizes S00, S0, S2, S3, snap-on mounting, IP20 finger-safe front.","salesMarkdown":"The Siemens SIRIUS 3RV1902-1AS0 is an undervoltage release (UVR) designed specifically for motor circuit breakers in the S00, S0, S2, and S3 frame sizes. Rated at 500 V AC at 50 Hz and 575 V AC at 60 Hz, this release matches the line voltage of common industrial mains in 400 V and 480 V class systems. The insulation voltage is rated 690 V with pollution degree 3, meaning it's suited for the conductive environment typical of control panels without sealed enclosures. Snap-on mounting onto DIN rail. The 18.5 mm width and 68 mm depth fit the accessory bay. Front is IP20 finger-safe. The 90 mm height matches the S00–S3 breaker profile, so the release sits flush with the breaker body. No auxiliary contacts are integrated (0 NO, 0 NC, 0 CO), so any status signaling must come from the breaker's own auxiliary switch block. The 3RV1902-1AS0 is a phased-out product. The manufacturer's designated successor is the SIRIUS 3RV2902-1AS0, listed as the preferred replacement type.","metaTitle":"Siemens 3RV1902-1AS0 SIRIUS Undervoltage Release, 500 V AC/5","metaDescription":"Siemens SIRIUS 3RV1902-1AS0 undervoltage release for motor circuit breakers sizes S00–S3. Rated 500 V AC at 50 Hz / 575 V AC at 60 Hz. Snap-on DIN rail mount, IP20 finger-safe fron","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":"500 V","at 60 Hz rated value":"575 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=371707&mlfb=3RV1902-1AS0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RV1902-1AS0/alternatives.json"},"ai":{"faq":[{"question":"What is the successor to 3RV1902-1AS0?","answer":"The official successor is the SIRIUS 3RV2902-1AS0. It is listed as the preferred successor type for this phased-out undervoltage release."},{"question":"What breaker sizes is 3RV1902-1AS0 compatible with?","answer":"It is designed for use with SIRIUS motor circuit breakers in frame sizes S00, S0, S2, and S3. The snap-on mount and 18.5 mm width let it fit into the accessory slot of those breakers."},{"question":"Where can I buy 3RV1902-1AS0?","answer":"As a phased-out part, it is sourced through independent distribution and surplus channels. Availability and current pricing are confirmed at quote time against an RFQ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV1902-1AS0","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/3RV1902-1AS0 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}}