phase loss monitoring relay / phase unbalance / three-phase / DIN rail
KFE30x series



  • Measured/monitored value:

    phase loss, phase unbalance

  • Other characteristics:

    three-phase, DIN rail


The KFE30x is a type of monitoring relay used in order to monitor voltage and current. It consist of a three-phase asymmetry monitor that involves phase order and phase failure. The monitoring relay also has a three phase voltage monitoring. It operates at power rates of 230VAC, 3X400VAC 50/60H z.