{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV6902-1AV0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV6902-1AV0","canonicalUrl":"https://aoctrl.com/siemens/3RV6902-1AV0","factsUrl":"https://aoctrl.com/api/mcp/products/3RV6902-1AV0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS undervoltage release, 400 V AC 50 Hz / 440 V AC 60 Hz, for circuit breaker sizes S00 and S0, screw connection, snap-on mounting, IP20 finger-safe front.","salesMarkdown":"The Siemens 3RV6902-1AV0 is a SIRIUS undervoltage release — a bolt-on accessory for the 3RV20 and 3RV10 motor circuit breaker family. That makes it a standard fit for any panel where a loss-of-voltage event needs a manual reset before the line can re-energize. It snaps onto the left side of the breaker via the standard DIN rail clip, no tools needed for the mechanical install. The screw terminals accept the control wiring directly. It covers both S00 and S0 frame sizes, so if your panel has a mix of 3RV10 and 3RV20 breakers, this one release fits both. The 18.5 mm width means it adds less than one standard MCB slot to the rail — tight for retrofit into a packed enclosure. The release itself is IP20 on the front, finger-safe per IEC 60529 for vertical contact. That's fine inside a locked panel; it's not for exposed or washdown locations. That storage range matters if you're stocking spares in an unheated warehouse. The design uses a fuse for short-circuit protection on the control circuit — that's the 'design of short-circuit protection: fuse' spec. Don't feed it through an MCB without checking coordination; the manufacturer expects a gG fuse upstream on the control transformer secondary.","metaTitle":"Siemens 3RV6902-1AV0 SIRIUS undervoltage release, 400 V AC 5","metaDescription":"Siemens SIRIUS 3RV6902-1AV0 undervoltage release for motor circuit breakers S00/S0. 400 V AC 50 Hz / 440 V AC 60 Hz coil. Snap-on DIN rail mount. IP20 finger-safe. Current lifecycl","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","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=621352&mlfb=3RV6902-1AV0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RV6902-1AV0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RV6902-1AV0?","answer":"This part is sourced and quoted to order against an RFQ through independent industrial distribution. Availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV6902-1AV0","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/3RV6902-1AV0 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}}