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nX Series offer you numerical type 3 phase overcurrent & Earth Fault Relay. Its microcontroller based design offers you to choose from various field selectable IDMT & definite curves.
MC31AnX – 51, 51N
MC61AnX - 51, 51N, 50, 50N
MC61CnX - 51, 51N, 50, 50N + Communication facility
7 types of trip time characteristics available