ARGUS overcurrent relay Non-directional, size 4 molded case, 4 CT, 10 LEDs, 3 binary inputs/ 3 binary outp. Measuring input: 1/5 A, 50/60 Hz auxiliary voltage: 24 to 60 V DC, binary input threshold 19 V DC; Standard version - with cover Communication: Front port: USB and rear: RS485 supporting IEC 60870-5-103 or Modbus RTU or DNP 3.0. Front fascia: with breaker control pushbuttons; protection function: standard version