{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV2902-2AP0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV2902-2AP0","canonicalUrl":"https://aoctrl.com/siemens/3RV2902-2AP0","factsUrl":"https://aoctrl.com/api/mcp/products/3RV2902-2AP0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS undervoltage release, 3RV2902-2AP0, 230 V AC/50 Hz, 240 V AC/60 Hz, spring-type terminal, for 3RV2 circuit breakers.","salesMarkdown":"The Siemens 3RV2902-2AP0 is a SIRIUS undervoltage release designed for use with 3RV2 motor circuit breakers in sizes S00, S0, S2, and S3. It drops the breaker's main contacts when the control supply voltage falls below its dropout threshold, providing undervoltage protection for motor loads. The release is powered by an AC control supply at 230 V / 50 Hz or 240 V / 60 Hz, with a frequency range of 50 to 60 Hz. Snap-on mounting onto a DIN rail. At 19 mm wide and 68 mm deep, it occupies a single module width on the rail. ## Environmental and insulation ratings The break time is a maximum of 20 ms — fast enough to clear a fault before downstream damage, but check coordination with upstream protective devices.","metaTitle":"Siemens 3RV2902-2AP0 SIRIUS undervoltage release, 230 V AC/5","metaDescription":"Siemens SIRIUS 3RV2902-2AP0 undervoltage release for 3RV2 motor circuit breakers. Rated 230 V AC/50 Hz, 240 V AC/60 Hz, spring-loaded terminals, 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":"0","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","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":"https://cdn.aoctrl.com/a1f9b9cfbc1499828d5d2e312196cc6b.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=459074&mlfb=3RV2902-2AP0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RV2902-2AP0/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV2902-2AP0","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/3RV2902-2AP0 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}}