7SR1813-1NC87-0CA0 - Siemens
Solkor 7SR18 differential protection, E6 case size, 6 binary inputs, 8 binary outputs, 18 LEDs, measuring input: 4 CTs (1A/5A), 24-250 V DC, 100 - 230 V AC, binary input threshold 88 V DC, signal: optical fibre link (1300 nm) (LC connection) 40 km, communication interface: USB front, RS485 rear, optical ethernet duplex (x2) rear port, IEC 60870-5-103 + Modbus RTU + DNP3 (user selectable) + IEC 61850, protection function packages: standard version