html{display:none} Popular Configuration | Schweitzer Engineering Laboratories

SEL-851

Feeder Protection Relay

851#KJ2K

  • Overcurrent, over/underfrequency, and breaker failure protection with autoreclosing
  • Universal power supply (24–250 Vdc/110–240 Vac).
  • Setting-selectable universal current inputs (1 A/5 A)
  • 4 digital inputs and 5 digital outputs (1 Form C, 2 Form A standard, and 2 Form A hybrid)
  • Communications ports: USB-C front port, EIA-232/EIA-485 rear serial port, and single 10/100BASE-T Ethernet port
  • Protocols: SEL protocols, Modbus RTU, Modbus TCP, Telnet, FTP, HTTP/HTTP5 web server, and SNTP