{"product_id":"3ug4615-1cr20-siemens-phase-monitoring-relay","title":"3UG4615-1CR20 | Siemens Phase Monitoring Relay","description":"\u003ch4\u003eDescription \u003c\/h4\u003e\n\u003cp class=\"\" data-end=\"574\" data-start=\"284\"\u003eThe 3UG4615-1CR20 is a Siemens phase monitoring relay designed to monitor phase sequence, phase failure, and asymmetry in three-phase systems.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications \u003c\/h4\u003e\n\u003ctable style=\"height: 422.625px;\" width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 21.875px;\"\u003e\n\u003cth class=\"text-left text-body1 text-bold py-10 pr-10 desktop:pr-[10rem] desktop:text-nowrap\" style=\"width: 20.7273%; text-align: left; height: 21.875px;\"\u003eCondition\u003c\/th\u003e\n\u003ctd class=\"text-left text-body1 py-10 desktop:w-[60%]\" style=\"width: 78.9091%; height: 21.875px;\"\u003eNew\/Never Used Surplus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 21.875px;\"\u003e\n\u003cth class=\"text-left text-body1 text-bold py-10 pr-10 desktop:pr-[10rem] desktop:text-nowrap\" style=\"width: 20.7273%; text-align: left; height: 21.875px;\"\u003eBrand\u003c\/th\u003e\n\u003ctd class=\"text-left text-body1 py-10 desktop:w-[60%]\" style=\"width: 78.9091%; height: 21.875px;\"\u003e\u003cspan data-sheets-root=\"1\"\u003e\u003cspan\u003eAllen-Bradley \u003c\/span\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 21.875px;\"\u003e\n\u003cth style=\"width: 20.7273%; text-align: left; height: 21.875px;\"\u003eCategory\u003c\/th\u003e\n\u003ctd style=\"width: 78.9091%; height: 21.875px;\"\u003e\u003cspan\u003eTransmission Distribute Relays\u003cbr\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 21.875px;\"\u003e\n\u003cth style=\"width: 20.7273%; text-align: left; height: 21.875px;\"\u003ePart Number\u003c\/th\u003e\n\u003ctd style=\"width: 78.9091%; height: 21.875px;\"\u003e\u003cspan data-sheets-root=\"1\"\u003e3UG4615-1CR20\u003cbr\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 21.875px;\"\u003e\n\u003cth style=\"width: 20.7273%; text-align: left; height: 21.875px;\"\u003e\u003cspan\u003eSubcategory\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd style=\"width: 78.9091%; height: 21.875px;\"\u003e\u003cspan data-sheets-root=\"1\"\u003e\u003cspan\u003eVoltage\/Phase Monitor\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth style=\"width: 20.7273%; text-align: left; height: 19.5938px;\"\u003e\n\u003cspan\u003eFunction\u003c\/span\u003e\u003cbr\u003e\n\u003c\/th\u003e\n\u003ctd style=\"width: 78.9091%; height: 19.5938px;\"\u003e\n\u003cdiv class=\"flex gap-[1.75rem]  md:gap-x-0 xl:gap-x-[1.875rem]\"\u003e\n\u003cdiv class=\"text-body-4 w-full font-light py-5 pl-4 md:py-6 md:pl-6 text-rad-gray-70\"\u003e\n\u003cdiv class=\"flex gap-[1.75rem]  md:gap-x-0 xl:gap-x-[1.875rem]\"\u003e\n\u003cdiv class=\"text-body-4 w-full font-light py-5 pl-4 md:py-6 md:pl-6 text-rad-gray-70\"\u003e\n\u003cdiv class=\"flex gap-[1.75rem]  md:gap-x-0 xl:gap-x-[1.875rem]\"\u003e\n\u003cdiv class=\"text-body-4 w-full font-light py-5 pl-4 md:py-6 md:pl-6 text-rad-gray-70\"\u003e\u003cspan\u003ePhase sequence, phase failure, voltage monitoring\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003cth style=\"width: 20.7273%; text-align: left; height: 39.1875px;\" class=\"text-left text-body1 text-bold py-10 pr-10 desktop:pr-[10rem] desktop:text-nowrap\"\u003e\u003cspan\u003eMonitoring Range\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd style=\"width: 78.9091%; height: 39.1875px;\" class=\"text-left text-body1 py-10 desktop:w-[60%]\"\u003e\n\u003cdiv class=\"tablerow\"\u003e\n\u003cdiv class=\"tablecolumn-newdes\"\u003e\n\u003cdiv class=\"attribute-value\"\u003e\u003cspan class=\"multiattribute\"\u003e\u003cspan\u003e3-phase AC voltage, 160–690 V\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003cth style=\"width: 20.7273%; text-align: left; height: 39.1875px;\" class=\"text-left text-body1 text-bold py-10 pr-10 desktop:pr-[10rem] desktop:text-nowrap\"\u003e\n\u003cspan\u003e\u003c\/span\u003eFrequency Range\u003cbr\u003e\n\u003c\/th\u003e\n\u003ctd style=\"width: 78.9091%; height: 39.1875px;\" class=\"text-left text-body1 py-10 desktop:w-[60%]\"\u003e\u003cspan\u003e50 to 60 Hz AC\u003cbr\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003cth style=\"width: 20.7273%; text-align: left; height: 39.1875px;\" class=\"text-left text-body1 text-bold py-10 pr-10 desktop:pr-[10rem] desktop:text-nowrap\"\u003e\u003cspan\u003eVoltage Monitoring\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd style=\"width: 78.9091%; height: 39.1875px;\" class=\"text-left text-body1 py-10 desktop:w-[60%]\"\u003e\u003cspan\u003eUndervoltage (Umin) and Overvoltage (Umax)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003cth style=\"width: 20.7273%; text-align: left; height: 39.1875px;\"\u003e\n\u003cspan\u003e\u003c\/span\u003eVoltage Hysteresis\u003cbr\u003e\n\u003c\/th\u003e\n\u003ctd style=\"width: 78.9091%; height: 39.1875px;\"\u003e\u003cspan\u003e1–20 V adjustable\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003cth style=\"width: 20.7273%; text-align: left; height: 39.1875px;\"\u003e\u003cspan\u003eTime Delay Settings\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd style=\"width: 78.9091%; height: 39.1875px;\" class=\"text-left text-body1 py-10 desktop:w-[60%]\"\u003e\u003cspan\u003e0–20 s adjustable for both Umin and Umax\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 20.7273%; height: 19.5938px;\"\u003e\u003cstrong\u003e\u003cspan\u003eOutput Contacts\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 78.9091%; height: 19.5938px;\"\u003e\u003cspan\u003e1 changeover contact (CO) for Umin and 1 CO contact for Umax\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 20.7273%; height: 19.5938px;\"\u003e\u003cstrong\u003e\u003cspan\u003eTerminal Type\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 78.9091%; height: 19.5938px;\"\u003e\u003cspan\u003eScrew terminalScrew terminal\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 26.75px;\"\u003e\n\u003ctd style=\"width: 20.7273%; height: 26.75px;\"\u003e\u003cstrong\u003e\u003cspan\u003eMounting Type\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 78.9091%; height: 26.75px;\"\u003e\u003cspan\u003eDIN rail\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 12.1875px;\"\u003e\n\u003ctd style=\"width: 20.7273%; height: 12.1875px;\"\u003e\u003cstrong\u003e\u003cspan\u003eIndicators\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 78.9091%; height: 12.1875px;\"\u003e\u003cspan\u003eLED status indicators for operational and fault status\u003cbr\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 20.7273%; height: 19.5938px;\"\u003e\u003cstrong\u003e\u003cspan\u003eWeight\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 78.9091%; height: 19.5938px;\"\u003e\u003cspan\u003e0.147 kgs\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003cspan style=\"font-size: 0.875rem;\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eInformation About 3UG4615-1CR20\u003c\/h4\u003e\n\u003cp data-start=\"124\" data-end=\"641\"\u003eThe Siemens 3UG4615-1CR20 is a compact and reliable phase monitoring relay designed to protect three-phase systems by monitoring phase sequence, phase failure, undervoltage, and overvoltage conditions. Part of the SIRIUS 3UG4 series, it supports a wide voltage range from 160 to 690 V AC and offers adjustable time delay and hysteresis settings. Designed for industrial automation and motor protection, this relay enhances system safety by detecting critical voltage disturbances before they can damage equipment.\u003c\/p\u003e\n\u003ch4 data-start=\"124\" data-end=\"641\"\u003eKey Features:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli data-start=\"662\" data-end=\"844\"\u003ePhase Sequence and Failure Monitoring:\u003cbr data-start=\"704\" data-end=\"707\"\u003eEnsures correct rotation direction and continuous operation by detecting incorrect phase sequence and phase loss in three-phase networks.\u003c\/li\u003e\n\u003cli data-start=\"846\" data-end=\"989\"\u003eWide Voltage Range – 160 to 690 V AC:\u003cbr data-start=\"887\" data-end=\"890\"\u003eSuitable for global applications with broad compatibility across industrial power supply standards.\u003c\/li\u003e\n\u003cli data-start=\"991\" data-end=\"1171\"\u003eUndervoltage and Overvoltage Detection:\u003cbr data-start=\"1034\" data-end=\"1037\"\u003eMonitors line voltage for deviations outside preset thresholds, providing early protection against voltage-related equipment failures.\u003c\/li\u003e\n\u003cli data-start=\"1173\" data-end=\"1317\"\u003eAdjustable Hysteresis – 1 to 20 V:\u003cbr data-start=\"1211\" data-end=\"1214\"\u003eCustomizable hysteresis values help reduce nuisance tripping in environments with voltage fluctuations.\u003c\/li\u003e\n\u003cli data-start=\"1319\" data-end=\"1503\"\u003eTime Delay Settings – 0 to 20 Seconds:\u003cbr data-start=\"1361\" data-end=\"1364\"\u003eAllows configurable delay response for undervoltage and overvoltage conditions, helping avoid false alarms during transient dips or spikes.\u003c\/li\u003e\n\u003cli data-start=\"1505\" data-end=\"1664\"\u003eTwo Changeover (CO) Contacts:\u003cbr data-start=\"1538\" data-end=\"1541\"\u003eProvides individual output contacts for both Umin and Umax conditions, enabling integration into alarm or control circuits.\u003c\/li\u003e\n\u003cli data-start=\"1666\" data-end=\"1775\"\u003eScrew Terminal Connection:\u003cbr data-start=\"1696\" data-end=\"1699\"\u003eStandard screw terminals ensure durable and secure wiring in control panels.\u003c\/li\u003e\n\u003cli data-start=\"1777\" data-end=\"1909\"\u003eDIN Rail Mounting:\u003cbr data-start=\"1799\" data-end=\"1802\"\u003eDesigned for easy and fast installation on DIN rails, suitable for space-constrained electrical enclosures.\u003c\/li\u003e\n\u003cli data-start=\"1911\" data-end=\"2064\"\u003eIndustrial Standards Compliance:\u003cbr data-start=\"1947\" data-end=\"1950\"\u003eMeets IEC specifications for voltage monitoring relays, supporting use in safety-critical industrial applications.\u003c\/li\u003e\n\u003cli data-start=\"2066\" data-end=\"2293\"\u003ePhased-Out Product Notice:\u003cbr data-start=\"2096\" data-end=\"2099\"\u003eThis model has been officially phased out. The recommended successor is Siemens 3UG5616-1CR20, which offers digital monitoring, enhanced functionality, and greater configuration flexibility.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2300\" data-end=\"2570\"\u003eThe 3UG4615-1CR20 has served as a dependable solution for voltage and phase fault detection in industrial power systems. With its successor, 3UG5616-1CR20, Siemens continues to provide modern and efficient protection technology for today's automation challenges.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":49105398464768,"sku":"3UG4615-1CR20","price":421.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0388\/5331\/2557\/files\/shopping_7_23bb6bc8-6cd1-4fd0-9c3e-71f6e63e284e.webp?v=1785546221","url":"https:\/\/alotechparts.com\/products\/3ug4615-1cr20-siemens-phase-monitoring-relay","provider":"Alo Tech Solutions","version":"1.0","type":"link"}