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SEL-421

Protection, Automation, and Control System

421#01

  • Standard distance protection
  • Serial communications protocols and FTP, Telnet, synchrophasors, DNP3, and IEC 61850 Edition 2
  • Two 10/100BASE-T connectors
  • 4U chassis
  • Additional 8 user-settable pickup voltage level independent inputs; 13 standard Form A and 2 standard Form C outputs
Power Supply 48–125 Vdc or 110–120 Vac125–250 Vdc or 110–240 Vac
Secondary Voltage and Current Inputs 300 V phase-neutral maximum (wye), 1 A phase300 V phase-neutral maximum (wye), 5 A phase300 V phase-neutral maximum (wye), 1 A phase300 V phase-neutral maximum (wye), 5 A phase
Configuration Number 421#0104 421#0102 421#0103 421#0101
Typically Ships In 5 Days 5 Days 5 Days 5 Days
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