{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3UG4614-2BR20","brand":"Siemens","brandSlug":"siemens","productSlug":"3UG4614-2BR20","canonicalUrl":"https://aoctrl.com/siemens/3UG4614-2BR20","factsUrl":"https://aoctrl.com/api/mcp/products/3UG4614-2BR20","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS network monitoring relay, 3UG4614-2BR20, 160-690 V AC 50/60 Hz, 3 A switching, LCD display, snap-on 22.5 mm housing.","salesMarkdown":"The Siemens SIRIUS 3UG4614-2BR20 is a network monitoring relay with digital setting, designed to monitor AC phase parameters in three-phase systems. It covers a rated voltage range of 160 to 690 V AC at both 50 and 60 Hz, making it suitable for standard industrial mains across most regions. The relay detects phase asymmetry and includes an auto-reset function, with a configurable start-up delay from 0.1 to 20 s to ride through momentary dips. Switching capacity is rated at 3 A at 250 V and 400 V AC (50/60 Hz), with lower ratings for DC loads: 1 A at 24 V, 0.2 A at 125 V, and 0.1 A at 250 V. The output relay provides a changeover contact, and isolation between outputs is confirmed. Clearance around the device is 0 mm in all directions, meaning it can be packed tightly against other components without derating. The front panel includes an LCD display for parameter readout, but no LED bar graph. ## Wiring & Termination The screw-type clamps are sized for standard control wiring; strip length and torque follow Siemens recommendations. The relay's output is a single changeover contact rated for general-purpose AC loads; for DC switching, derate per the listed values.","metaTitle":"Siemens SIRIUS 3UG4614-2BR20 Network Monitoring Relay, 160-6","metaDescription":"Siemens SIRIUS 3UG4614-2BR20 phase/network monitoring relay, 160-690 V AC, 50/60 Hz, 3 A contacts, LCD display, snap-on 22.5 mm. Current lifecycle stage. Sourced to order.","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":"94 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","When Starting":"0.1 ... 20 s","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":"160 ... 690 V","at 60 Hz rated value":"160 ... 690 V","for AWG cables solid":"2x (24 ... 16)","Design Of The Display":"LCD","Design Of The Product":"4 functions","Overvoltage Detection":"No","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":"160 ... 690 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":"No","Substance Prohibitance (Date)":"05/01/2012","Type Of Electrical Connection":"spring-loaded terminals","Undervoltage Detection 3 Phases":"Yes","Voltage Window Recognition 3 Phase":"No","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/3UG4614-2BR20/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings of the 3UG4614-2BR20?","answer":"It monitors AC voltage from 160 to 690 V at 50/60 Hz. The output relay switches 3 A at 250/400 V AC, or 1 A at 24 V DC. It detects phase asymmetry and has an auto-reset function with a 0.1-20 s start delay."},{"question":"What is the physical size and mounting of the 3UG4614-2BR20?","answer":"It is 22.5 mm wide, 94 mm high, and 91 mm deep. It snaps onto a DIN rail and can be mounted in any position with zero clearance required on all sides."},{"question":"What wire sizes does the 3UG4614-2BR20 accept?","answer":"It accepts solid or stranded wire from 24 to 16 AWG, and up to 2x 24-16 AWG solid conductors per terminal."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3UG4614-2BR20","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/3UG4614-2BR20 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}}