{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3UG4513-2BR20","brand":"Siemens","brandSlug":"siemens","productSlug":"3UG4513-2BR20","canonicalUrl":"https://aoctrl.com/siemens/3UG4513-2BR20","factsUrl":"https://aoctrl.com/api/mcp/products/3UG4513-2BR20","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS network monitoring relay with analog setting, 3UG4513-2BR20, phase monitoring relay for AC systems, 160-690 V AC, 22.5 mm width, snap-on mounting.","salesMarkdown":"The Siemens SIRIUS 3UG4513-2BR20 is a network monitoring relay with analog setting, purpose-built to watch a three-phase AC supply for phase loss, asymmetry, and undervoltage. It's the kind of part you spec into a motor control center when you want one device to cover the basic power-quality checks without a PLC doing the math. Rated input spans 160 to 690 V AC at both 50 and 60 Hz, so it handles everything from a 208 V feeder up to a 600 V industrial bus without a tap change. The output contacts are rated 3 A at 250 V and 400 V, 50/60 Hz — enough to kick a contactor coil or signal a PLC input directly. Snap-on mounting to a DIN rail, 22.5 mm wide. IP20 finger-safe terminals. The 160-690 V AC range covers common low-voltage three-phase systems. The analog dial adjusts the trip point as a percentage of nominal voltage; initial value is 1. Asymmetry detection is built in. Output contacts are rated 3 A at 250 V and 400 V AC, but derate for DC loads: 1 A at 24 V, 0.2 A at 125 V, 0.1 A at 250 V. If you're switching a DC coil or a PLC input, keep the DC curve in mind — the AC rating doesn't carry over. Auto-reset is enabled by default (yes, it's listed). That means after a fault clears, the relay re-energizes automatically — good for unattended sites, but if you need manual reset for safety, check the wiring config. Delayed switching is set to 2 seconds, giving a brief ride-through for momentary dips.","metaTitle":"Siemens 3UG4513-2BR20 SIRIUS Phase Monitoring Relay, 160-690","metaDescription":"Siemens SIRIUS 3UG4513-2BR20 phase monitoring relay. Monitors AC 3-phase for asymmetry, phase loss, and undervoltage. 22.5 mm wide, snap-on DIN mount. Rated 3 A at 250/400 V. Curre","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","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 analog setting","at AWG cables solid":"2x (24 ... 16)","display version LED":"Yes","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","Design Of The Product":"4 functions","Overvoltage Detection":"No","For Auxiliary Contacts":"2","Undervoltage Detection":"Yes","at AWG cables stranded":"2x (24 ... 16)","Phase Failure Detection":"Yes","Between Input And Output":"Yes","Relative Repeat Accuracy":"1 %","measurable voltage at AC":"160 ... 690 V","Phase Sequence Recognition":"Yes","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","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":"No","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/3UG4513-2BR20/alternatives.json"},"ai":{"faq":[{"question":"What is the depth of this relay?","answer":"The depth is 91 mm. The overall dimensions are 22.5 mm wide, 94 mm high, 91 mm deep — a standard single-module DIN-rail footprint."},{"question":"What wire sizes does the terminal accept?","answer":"Solid and stranded wire from 24 to 16 AWG (2x 24-16 AWG for solid). The terminals are spring-cage type, IP20 rated."},{"question":"What compliance documentation is available?","answer":"The part carries standard Siemens SIRIUS compliance: RoHS, REACH, and CE marking. Specific declarations are available on request through the Siemens support portal."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3UG4513-2BR20","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/3UG4513-2BR20 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}}