AQ-F210 Feeder Protection IED

The AQ-F210 offers a modular feeder protection and control solution for non-directional overcurrent and earth-fault protection with automatic reclosing. Up to four optional I/O or communication cards are available for more comprehensive monitoring and control applications. The AQ-F210 communicates using various protocols including IEC 61850 substation communication standard.


  • Cable end differential protection
  • Low-impedance REF protection
  • Harmonics protection and control
  • 5-shot scheme controlled autorecloser
Three-phase overcurrent, 4 stages INST, DT or IDMT (50/51)
Earth-fault (sensitive), 4 stages INST, DT or IDMT (50/51N)
Harmonic overcurrent / inrush blocking, 4 stages INST, DT or IDMT (50/51H, 68)
Current unbalance / broken conductor, 4 stages INST, DT or IDMT (46/46R/46L)
High/low impedance restricted earth fault / cable end differential (87N)
Breaker failure protection (50BF/52BF)
Arc protection (option) (50ARC/50NARC)