{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3UG4616-1BR28-0AA1","brand":"Siemens","brandSlug":"siemens","productSlug":"3UG4616-1BR28-0AA1","canonicalUrl":"https://aoctrl.com/siemens/3UG4616-1BR28-0AA1","factsUrl":"https://aoctrl.com/api/mcp/products/3UG4616-1BR28-0AA1","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS Network monitoring relay with digital setting, 3UG4616-1BR28-0AA1, 3-phase 160-690 V, 50/60 Hz, undervoltage/overvoltage, 2 CO, screw terminals.","salesMarkdown":"The 3UG4616-1BR28-0AA1: The 160-690 V AC range covers standard low-voltage networks (400/480 V) plus 690 V industrial systems — no external PT needed for most panels. The hysteresis (1-20 V) sets the reset band after a voltage event; a tight 1 V hysteresis catches nuisance trips on a stable line, while 20 V prevents chatter on a weak supply. Off delay (0-20 s) lets you ride through momentary sags without tripping — set it to 2-5 s for motor starting dips. Two CO (changeover) contacts give one normally-open and one normally-closed set per fault output. That is enough to drive a PLC input and a local alarm lamp simultaneously. The screw terminals accept standard control wiring — no special tooling needed. The reference code according to IEC 81346-2 is K, which designates a relay or contactor function in the panel schematic. This helps with documentation and BOM alignment for IEC-based projects. This relay is built for panel-level voltage monitoring in motor control centers, distribution boards, and machine supply circuits. It protects downstream equipment from phase loss, phase reversal, and sustained over/undervoltage — common causes of motor winding failure and drive input damage.","metaTitle":"Siemens SIRIUS 3UG4616-1BR28-0AA1 Network Monitoring Relay,","metaDescription":"Active Siemens SIRIUS 3UG4616-1BR28-0AA1 network monitoring relay. Digital setting, 3-phase voltage with N-conductor, 160-690 V, 50/60 Hz, undervoltage/overvoltage, 2 CO. Sourced t","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Process / Temperature Controllers"],"specifications":{"lifecycle_stage":"current","Product Brand Name":"SIRIUS","Product Designation":"Network monitoring relay with digital setting","Substance Prohibitance (Date)":"05/01/2012","reference code according to IEC 81346-2":"K"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/3UG4616-1BR28-0AA1/alternatives.json"},"ai":{"faq":[{"question":"What compliance documentation does this relay carry?","answer":"The Substance Prohibitance date of 05/01/2012 indicates RoHS compliance. The part is from the Siemens SIRIUS family, which typically provides CE, UL, and CSA certifications per the series documentation."},{"question":"What are the key adjustable parameters?","answer":"Undervoltage and overvoltage thresholds are set digitally across the 160-690 V range. Hysteresis is adjustable from 1 to 20 V, and off delay from 0 to 20 s. Phase sequence monitoring can be enabled or disabled."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3UG4616-1BR28-0AA1","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/3UG4616-1BR28-0AA1 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}}