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industrial power networks
non-condensing (both operating and storage)
Communication: 1 x RS485 port
ensuring compatibility with high-performance monitoring systems
ABB REJ603 CT-Powered Overcurrent Protection Unit Communication Interface industrial power networksOverview The ABB REJ603 is a CT powered feeder protection relay designed for medium voltage secondary distribution networks. As part of the Relion 605 series, it provides numerical overcurrent and earth fault protection without requiring any auxiliary power greatly enhancing reliability in locations where power availability is limited. This makes the REJ603 highly suitable for unmanned substations, rural grids, and Ring Main Units (RMUs). It features