{"product_id":"abb-rex010-hesg324426m1-earth-fault-protection-unit","title":"ABB REX010 HESG324426M1 Earth Fault Protection Unit","description":"\u003ch2\u003e\u003cstrong\u003eABB REX010 HESG324426M1 Earth Fault Protection Unit\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eABB REX010 HESG324426M1\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis an advanced earth fault protection relay engineered to protect vital electrical infrastructure from the risks of ground faults. Specifically designed for\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003emedium and high voltage applications\u003c\/strong\u003e, this unit is widely used in\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003epower generation, industrial facilities, substations\u003c\/strong\u003e, and other critical environments. It continuously monitors current flow to ground, providing fast and accurate detection of faults and initiating protective measures, such as\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ecircuit breaker trips\u003c\/strong\u003e, to prevent equipment damage and operational disruptions.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eComprehensive Earth Fault Detection\u003c\/strong\u003e\u003cbr\u003eDetects various types of earth faults in\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003egenerators, transformers, motors, busbars, stators, and rotors\u003c\/strong\u003e, offering full-spectrum protection.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMedium to High Voltage Applications\u003c\/strong\u003e\u003cbr\u003eOptimized for operation in electrical systems running at\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003emedium to high voltages\u003c\/strong\u003e, making it suitable for demanding utility and industrial environments.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHigh Detection Accuracy\u003c\/strong\u003e\u003cbr\u003eOffers a precise fault detection accuracy of\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e±2%\u003c\/strong\u003e, ensuring dependable system performance and reduced false alarms.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWide Current Monitoring Range\u003c\/strong\u003e\u003cbr\u003eCapable of monitoring\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ecurrent values from 5 A to 2000 A\u003c\/strong\u003e, adaptable to a broad range of installations and equipment sizes.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRugged IP65 Housing\u003c\/strong\u003e\u003cbr\u003eIndustrial-grade\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eIP65-rated enclosure\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eprovides robust protection against dust, moisture, and water jets—ideal for harsh environments.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eExtended Temperature Tolerance\u003c\/strong\u003e\u003cbr\u003eOperates reliably in a temperature range from\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e-20°C to +55°C\u003c\/strong\u003e, with storage tolerance down to\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e-40°C\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eand up to\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e+85°C\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSCADA\/DCS Communication Support\u003c\/strong\u003e\u003cbr\u003eIncludes integrated communication interfaces for\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eremote management and monitoring\u003c\/strong\u003e, allowing integration into\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eSCADA\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eor\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eDCS systems\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eModular Design (Variant Dependent)\u003c\/strong\u003e\u003cbr\u003eSelect models feature a modular construction for\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eeasier maintenance\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eand\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003equick part replacement\u003c\/strong\u003e, improving system uptime.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility with Injection Transformers\u003c\/strong\u003e\u003cbr\u003eDesigned to work in conjunction with ABB's\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eREX011 injection transformer\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eto deliver\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% stator and rotor earth fault protection\u003c\/strong\u003e, using low-frequency signal injection techniques.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eDetails\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eREX010 HESG324426M1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEarth Fault Protection Relay \/ Unit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eABB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePrimary Applications\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGenerators, transformers, stators, motors, busbars, cables\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e277\/480 V AC (typical); up to 3200 V DC with injection transformer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFrequency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e50\/60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCurrent Monitoring Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5 A to 2000 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAccuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±2%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-20°C to +55°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStorage Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-40°C to +85°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProtection Class\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIP65 (dustproof and protected from water jets)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCommunication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSupports remote monitoring via SCADA\/DCS (model dependent)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Accessory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eABB REX011 (for 100% stator\/rotor protection)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSweden\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cstrong\u003ePhysical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003cth\u003e\u003cstrong\u003eDimension\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eValue\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eLength\u003c\/td\u003e\n\u003ctd\u003e25.4 cm (10.0 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e20.3 cm (8.0 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDepth\u003c\/td\u003e\n\u003ctd\u003e1.3 cm (0.5 in) or 3.2 cm (1.26 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight (approx.)\u003c\/td\u003e\n\u003ctd\u003e0.5 kg (typical relay) or 7.35 kg (packed unit\/variant dependent)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cblockquote\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eWeight and depth may vary by model or packaging. Always consult the official ABB datasheet for exact dimensions.\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cstrong\u003eConclusion\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eABB REX010 HESG324426M1\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eoffers precise, dependable, and scalable protection against earth faults across a wide range of high-demand applications. With its robust housing, advanced communication, and compatibility with injection transformers for stator\/rotor monitoring, the REX010 is a reliable cornerstone in industrial and utility electrical protection systems.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":50358131589416,"sku":"REX010 HESG324426M1","price":300.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0827\/6266\/2184\/files\/REX010HESG324426M13.jpg?v=1751860210","url":"https:\/\/www.powerdcs.com\/products\/abb-rex010-hesg324426m1-earth-fault-protection-unit","provider":"Power DCS Parts Limited","version":"1.0","type":"link"}