{"product_id":"abb-reu610-supervision-relay","title":"ABB REU610 Supervision Relay","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eABB REU610\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a specialized voltage protection relay designed for the supervision of distribution substation busbars, feeders, and power transformers. As a member of the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eRelion® 610 series\u003c\/strong\u003e, it excels in applications requiring over-voltage and under-voltage protection, motor under-voltage monitoring, and capacitor bank supervision.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eManufacturer:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eABB\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSeries:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eRelion 610 (Voltage Protection)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eProtection Functions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eTwo-stage Overvoltage Protection (\u003cspan class=\"math-inline\"\u003e$U\u0026gt;$\u003c\/span\u003e,\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"math-inline\"\u003e$U\u0026gt;\u0026gt;$\u003c\/span\u003e)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eTwo-stage Undervoltage Protection (\u003cspan class=\"math-inline\"\u003e$U\u0026lt;$\u003c\/span\u003e,\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"math-inline\"\u003e$U\u0026lt;\u0026lt;$\u003c\/span\u003e)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eTwo-stage Residual Overvoltage Protection (\u003cspan class=\"math-inline\"\u003e$U_0\u0026gt;$\u003c\/span\u003e,\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"math-inline\"\u003e$U_0\u0026gt;\u0026gt;$\u003c\/span\u003e)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eNegative Phase-Sequence Overvoltage OR Positive Phase-Sequence Undervoltage (Mutually exclusive)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDesign:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eRemovable plug-in unit for rapid maintenance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCertifications:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eKEMA Type Test certified; DNV certified for marine and offshore use\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCommunication:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eSupports IEC 61850, Modbus, Profibus, DNP3, SPA, LON, and IEC 60870-5-103\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMounting:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eCompact design for panel integration or retrofit\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eKey Features \u0026amp; Engineering Advantages\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eVersatile Supervision:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eBeyond simple tripping, the REU610 is an essential tool for initializing automatic busbar changeovers and disconnecting small power units from public networks during islanding events.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMaintenance Efficiency:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe plug-in hardware design facilitates the commissioning of switchgear and enables the safe withdrawal of the relay unit without disturbing the fixed wiring, significantly reducing Mean Time to Repair (MTTR).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMaritime Ready:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eWith its DNV certification, the REU610 is a trusted component for off-shore platforms and marine vessels where vibration resistance and high reliability are mandatory.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eFlexible Protection Logic:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe inclusion of selectable phase-sequence protection allows engineers to tune the relay for specific sensitive applications, such as identifying voltage unbalances that could damage motors.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eBroad Connectivity:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eIts support for virtually every major industrial protocol ensures that the REU610 can be integrated into legacy SCADA systems or modern digital substations.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":46799788638398,"sku":"REU610","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/1145\/5422\/files\/screenshot_2026-05-08_11-36-49_d48c3661-1f13-4701-a58f-7243870bb229.png?v=1778211562","url":"https:\/\/www.autooiltech.com\/products\/abb-reu610-supervision-relay","provider":"AutoOilTech Limited","version":"1.0","type":"link"}