7SR1577-5MA12-2CA0 SIEMENS7SR15775MA122CA0

Voltage relay Argus 7SR157 check synchronising, case I/O and fascia: 2 VT, 3 binary inputs / 5 binary outputs, 10 LEDs, measuring input: 40 - 160 V, 50/60 Hz, auxiliary voltage: 24-250 V DC / 100-230 V AC, binary input threshold 19 V DC, comms interface: standard (USB front port, RS485 rear port) E4 case, IEC 60870-5-103, Modbus RTU and DNP3, front cover: push buttons - down and right arrows