Numerical Protection Relay with COMBINE OVER & UNDER VOLTAGE, OVER & UNDER FREQUENCY, IDMT OVER CURRENT, SHORT CIRCUIT & EARTH FAULT RELAY (ANSI 27, 59, 81O, 81V, 50, 51, 50N, 51N, 74TC, CBFP,) USB and RS485 communication. Rated
Voltage AC – 230/440 and 110