{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3UG4617-2CR20","brand":"Siemens","brandSlug":"siemens","productSlug":"3UG4617-2CR20","canonicalUrl":"https://aoctrl.com/siemens/3UG4617-2CR20","factsUrl":"https://aoctrl.com/api/mcp/products/3UG4617-2CR20","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS network monitoring relay, 3UG4617-2CR20, phase monitoring with LCD display, 160-690 VAC, 3 A contact rating, snap-on 22.5 mm housing, IP20.","salesMarkdown":"The Siemens 3UG4617-2CR20 is a SIRIUS network monitoring relay — a phase monitoring relay with digital setting and an LCD display. It monitors three-phase AC supplies for phase loss, phase sequence, asymmetry, and overvoltage, with a rated voltage range of 160 to 690 V at 50 or 60 Hz. The output contacts are rated 3 A at 250 V and 400 V (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. That means the relay can switch small motor starters or signal lamps directly, but for larger contactor coils you'd want an interposing relay. Asymmetry detection and overvoltage detection are built in, with a configurable auto-reset function. The LCD gives you a local readout of the measured values and settings — no separate display module needed. The housing is 22.5 mm wide, 94 mm high, and 91 mm deep — a standard single-module width for DIN-rail enclosures. Clearance around the unit: 0 mm on all sides (up, down, forwards, backwards, sideways), meaning it can be packed tight against other devices without derating.","metaTitle":"Siemens 3UG4617-2CR20 SIRIUS Phase Monitoring Relay, 160-690","metaDescription":"Siemens SIRIUS 3UG4617-2CR20 phase monitoring relay with LCD display, asymmetry & overvoltage detection. Rated 160-690 VAC, 3 A contacts. Current lifecycle. Snap-on 22.5 mm. IP20.","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 digital setting","at AWG cables solid":"2x (24 ... 16)","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","Design Of The Display":"LCD","Design Of The Product":"5 functions","Overvoltage Detection":"Yes","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","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":"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/3UG4617-2CR20/alternatives.json"},"ai":{"faq":[{"question":"What is the voltage range this relay monitors?","answer":"It monitors three-phase AC supplies from 160 to 690 V at both 50 Hz and 60 Hz."},{"question":"What contact ratings does it have?","answer":"AC contacts are rated 3 A at 250 V and 400 V (50/60 Hz). DC ratings are 1 A at 24 V, 0.2 A at 125 V, and 0.1 A at 250 V."},{"question":"Does it fit on a standard DIN rail?","answer":"Yes, it snaps onto 35 mm DIN rail. The housing is 22.5 mm wide and requires 0 mm clearance on all sides."},{"question":"What protection class does it have?","answer":"IP20 — suitable for finger-safe installation inside a closed electrical panel, but not for wet or dusty environments."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3UG4617-2CR20","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/3UG4617-2CR20 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}}