Underground Fault indicator DYO-FF-FI

  • Underground Fault indicator DYO-FF-FI
  • Underground Fault indicator DYO-FF-FI
  • Underground Fault indicator DYO-FF-FI
  • Underground Fault indicator DYO-FF-FI
  • Underground Fault indicator DYO-FF-FI
  • Underground Fault indicator DYO-FF-FI


    Underground cable fault indicator DYO-FF-FI cable fault indicator, support detection of short circuit fault ground fault, display fault status through panel LED fault light, with detachable stainless steel bracket sensor, cable fault indicator can be flexibly fixed on the cable with shielding protective layer, a control panel unit With 3 short-circuit sensors and 1 ground sensor connected by copper core cable

    Feature and Benefit

    • Cable Fault Indicator

      Stability & Reliability

      Static power consumption

      High-performance industrial 32-bit CPU, support low power consumption mode

    • Cable Fault Indicator

      Flexible parameter setting method

      DIP setting
      Support DIP switch and remote setting parameters

    • Cable Fault Indicator

      Status indication via integrated LED lights

      Bright LED prompt
      When a phase-to-phase short circuit or a ground (phase-to-ground) fault occurs, the corresponding red LED light will give a flashing alarm indication

    • Cable Fault Indicator

      Quick installation

      The control panel is installed on the panel of the switchgear / wall-mounted installation Protection class IP54
      The sensor is mounted on a shielded cable, protection class IP69

    Technical Parameter

    Parameter  value
    Voltage class of cable power
    distribution lines
    Short-circuit Trip Current
    (Phase to Phase)
    150A/360A/450A/625A,default 150A,adjustable by DIP switch
    Short-circuit Response
    Delay Time
    50ms/100ms /150ms /200ms,default 50ms,adjustable by DIP switch
    Earth-fault Trip Current
    (Phase to Ground)
    40A/80A/120A/160A,default 40A,adjustable by DIP switch
    Earth-fault Response Delay Time 50ms/100ms /150ms /200ms, default 50ms,adjustable by DIP switch
    Fault Indication Earth-fault: 1 Red LED
    Short-circuit: 3 Red LED
    Low Battery alarm: 1 Yellow LED
    Reset of the Indicator 1. Manual by push button
    2. Timing Reset
    3. DI reset from SCADA
    4. Load current recovering reset (at least 15A)
    5. 220~240VAC recovering reset
    6. Communications by MODBUS
    Power Supply Lithium battery type AA 3.6V / 2.7Ah
    Optional 5~36VDC external power supply
    Communication RS485: Data bits 8/Stop bits 1/Parity
    none/Baud Rate:9600
    Protocol: MODBUS RTU
    Installation Display unit: wall-mounted installation
    Dimensions Indication unit (W x H x D)
    100mm x 120mm x 45mm (exclusive cable gland)
    Protection Class  Display unit: IP54
      Sensors: IP68
    Internal Type Test According to IEEE495-2007
    Operation Temperature Range  -40℃~+70℃
    Short-circuit Sensor 3 short-circuit sensor for 3 phase cable
    Diameter: Max.40mm
    Earth-fault Sensor 1 earth-fault sensor for a three-core cable
    Diameter: Max.110mm
    Configuration Setting via DIP switch

    Contact Us

    We are selling at first come, first serve basis. Please fill the contact form to request a callback or simply
    give us a call at (+86 17750019379).