{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3UG4616-2CR20","brand":"Siemens","brandSlug":"siemens","productSlug":"3UG4616-2CR20","canonicalUrl":"https://aoctrl.com/siemens/3UG4616-2CR20","factsUrl":"https://aoctrl.com/api/mcp/products/3UG4616-2CR20","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS network monitoring relay, 3UG4616-2CR20, phase monitoring, 90-400 V AC, 3 A, LCD display, IP20, snap-on mounting.","salesMarkdown":"## Phase and network monitoring with digital precision The Siemens SIRIUS 3UG4616-2CR20 is a network monitoring relay with digital setting, designed to monitor phase sequence, phase failure, asymmetry, and overvoltage on three-phase AC systems. It accepts a rated voltage range of 90 to 400 V AC at both 50 and 60 Hz, covering common low-voltage industrial supplies without needing a separate supply transformer. The relay provides a single changeover contact rated at 3 A at 250 V AC or 400 V AC (50/60 Hz), and 1 A at 24 V DC, sufficient for signaling to a PLC or contactor coil. Asymmetry detection and overvoltage detection are built in, with a configurable delayed switching of 2 seconds to ride through transient events. IP20 protection means it is suited for dry indoor control panels only. The LCD display shows measured values and settings, making commissioning straightforward without needing a separate programmer.","metaTitle":"Siemens 3UG4616-2CR20 SIRIUS Phase Monitoring Relay, 90-400","metaDescription":"Siemens SIRIUS 3UG4616-2CR20 phase monitoring relay, 90-400 V AC, 3 A rated, asymmetry & overvoltage detection, LCD display, IP20, snap-on mounting. Active production.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"NRND","categoryPath":["Process / Temperature Controllers"],"specifications":{"Depth":"91 mm","Solid":"24 ... 16","Width":"22.5 mm","Height":"103 mm","Upwards":"0 mm","at 24 V":"1 A","Forwards":"0 mm","Stranded":"24 ... 16","at 125 V":"0.2 A","at 250 V":"0.1 A","Backwards":"0 mm","Downwards":"0 mm","auto-RESET":"Yes","At The Side":"0 mm","Initial Value":"1","During Storage":"-40 ... +85 °C","For Monitoring":"AC","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","During Transport":"-40 ... +85 °C","Fastening Method":"snap-on mounting","Full-Scale Value":"1","Product Function":"Phase monitoring relay","Delayed Switching":"2","Mounting Position":"any","Product Brand Name":"SIRIUS","Asymmetry Detection":"Yes","Between The Outputs":"Yes","Degree Of Pollution":"3","Product Designation":"Network monitoring relay with digital setting","display version LED":"No","protection class IP":"IP20","at 250 V at 50/60 Hz":"3 A","at 400 V at 50/60 Hz":"3 A","at 50 Hz rated value":"90 ... 400 V","at 60 Hz rated value":"90 ... 400 V","for AWG cables solid":"2x (24 ... 16)","Design Of The Display":"LCD","Design Of The Product":"5 functions","Overvoltage Detection":"Yes","For Auxiliary Contacts":"2","Undervoltage Detection":"Yes","Phase Failure Detection":"Yes","for AWG cables stranded":"2x (24 ... 16)","Between Input And Output":"Yes","Relative Repeat Accuracy":"1 %","measurable voltage at AC":"90 ... 400 V","Phase Sequence Recognition":"Yes","Accuracy Of Digital Display":"+/-1 digit","Relative Metering Precision":"5 %","Of The Control Supply Voltage":"AC","Overvoltage Detection 3 Phase":"Yes","Substance Prohibitance (Date)":"05/01/2012","Type Of Electrical Connection":"spring-loaded terminals","Undervoltage Detection 3 Phases":"Yes","Voltage Window Recognition 3 Phase":"Yes","With Lower Or Upper Limit Violation":"0.1 ... 20 s","operational current at 17 V minimum":"5 mA","Surge Voltage Resistance Rated Value":"6 kV","With Degree Of Pollution 3 Rated Value":"690 V","due to burst according to IEC 61000-4-4":"2 kV","number of NC contacts delayed switching":"0","number of NO contacts delayed switching":"0","reference code according to IEC 81346-2":"K","Finely Stranded With Core End Processing":"0.25 ... 1.5 mm²","Number Of Poles For Main Current Circuit":"3","Finely Stranded Without Core End Processing":"0.25 ... 1.5 mm²","shock resistance according to IEC 60068-2-27":"sinusoidal half-wave 15g / 11 ms","Between The Voltage Supply And Other Circuits":"Yes","operating frequency with 3RT2 contactor maximum":"5 000 1/h","vibration resistance according to IEC 60068-2-6":"1 ... 6 Hz: 15 mm, 6 ... 500 Hz: 2g","Adjustable Open/Closed-Circuit Current Principle":"Yes","Mechanical Service Life (Operating Cycles) Typical":"10 000 000","electrostatic discharge according to IEC 61000-4-2":"6 kV contact discharge / 8 kV air discharge","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Thermal Current Of The Switching Element With Contacts Maximum":"5 A","continuous current of the DIAZED fuse link of the output relay":"4 A","Product Component Removable Terminal For Auxiliary And Control Circuit":"Yes"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/3UG4616-2CR20/alternatives.json"},"ai":{"faq":[{"question":"What voltage range does the 3UG4616-2CR20 monitor?","answer":"It monitors three-phase AC systems from 90 to 400 V AC at both 50 and 60 Hz, covering standard low-voltage industrial supplies."},{"question":"What are the contact ratings on the output relay?","answer":"The changeover contact is rated 3 A at 250 V AC or 400 V AC (50/60 Hz), and 1 A at 24 V DC, 0.2 A at 125 V DC, 0.1 A at 250 V DC."},{"question":"Does the 3UG4616-2CR20 detect phase asymmetry and overvoltage?","answer":"Yes, it includes both asymmetry detection and overvoltage detection as standard functions."},{"question":"What is the mounting width and IP rating?","answer":"The enclosure is 22.5 mm wide, snaps onto a DIN rail, and carries IP20 protection for indoor panel use."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3UG4616-2CR20","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/3UG4616-2CR20 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}}