{"product_id":"abb-rej603bbb10nn3xc-self-powered-feeder-protection-relay","title":"ABB REJ603BBB10NN3XC Self-Powered Feeder Protection Relay","description":"\u003ch3\u003e\u003cstrong\u003eProduct Description\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eABB REJ603BBB10NN3XC\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a self-powered feeder protection relay engineered for medium-voltage secondary distribution networks. Unlike traditional relays, it derives operating power directly from the current transformer (CT) input, eliminating the need for an auxiliary power source. This design makes it ideal for applications where external power is limited, such as ring main units (RMUs), compact substations, and distribution automation projects.\u003c\/p\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\u003eAttribute\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eABB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eRelion® 600\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eREJ603BBB10NN3XC\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eSelf-Powered Feeder Protection Relay\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection Functions\u003c\/td\u003e\n\u003ctd\u003ePhase overcurrent, Earth fault, Undervoltage\/Overvoltage\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Frequency\u003c\/td\u003e\n\u003ctd\u003e50 \/ 60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Current\u003c\/td\u003e\n\u003ctd\u003e1 A \/ 5 A (selectable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Supply\u003c\/td\u003e\n\u003ctd\u003eSelf-powered via CT input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStartup Power Requirement\u003c\/td\u003e\n\u003ctd\u003e~2.5 VA at rated current\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTrip Output\u003c\/td\u003e\n\u003ctd\u003e1 NO (Normally Open)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBinary I\/O\u003c\/td\u003e\n\u003ctd\u003e1 Digital Input \/ 1 Digital Output (configurable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFault Recording\u003c\/td\u003e\n\u003ctd\u003eUp to 100 fault events stored\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUser Interface\u003c\/td\u003e\n\u003ctd\u003eLED indicators, DIP switch configuration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication\u003c\/td\u003e\n\u003ctd\u003eNone by default; optional serial interface available\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConfiguration\u003c\/td\u003e\n\u003ctd\u003eManual (DIP switches) or optional software\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnclosure Material\u003c\/td\u003e\n\u003ctd\u003eFlame-retardant plastic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection Class\u003c\/td\u003e\n\u003ctd\u003eIP54 front, IP20 rear\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (HxWxD)\u003c\/td\u003e\n\u003ctd\u003e160 × 96 × 150 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.9 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\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\u003eSelf-powered operation ensures deployment where auxiliary supply is unavailable.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCompact design fits RMUs, compact substations, and distribution cabinets.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eProvides reliable protection against overcurrent, earth faults, and voltage irregularities.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRecords up to 100 events for diagnostic analysis.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSimple configuration through DIP switches or optional software.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDurable construction with IP54-rated front for harsh environments.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eSecondary distribution networks in medium-voltage systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRing Main Units (RMUs)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCompact Substations\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDistribution automation projects with limited auxiliary power\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can the REJ603BBB10NN3XC be installed without any auxiliary power supply?\u003c\/strong\u003e\u003cbr\u003eA: Yes. The relay is self-powered from the CT input and does not require an external voltage source.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How many fault records can it store?\u003c\/strong\u003e\u003cbr\u003eA: The relay stores up to 100 fault events for diagnostics and analysis.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is remote communication supported?\u003c\/strong\u003e\u003cbr\u003eA: Standard units do not include communication, but optional serial interfaces are available upon request.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How is the relay configured?\u003c\/strong\u003e\u003cbr\u003eA: Configuration is performed using DIP switches or optional ABB configuration software.\u003c\/p\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":42994999099482,"sku":"REJ603BBB10NN3XC","price":258.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/REJ603BBB10NN3XC2.jpg?v=1772438401","url":"https:\/\/www.plcmasters.com\/products\/abb-rej603bbb10nn3xc-self-powered-feeder-protection-relay","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}