Universal Feeder Control Units, IEC-104, two-field monitoring, pulsation method, wiper mode, ohmic voltage measurement

Item number: 2502177
The universal Feeder Control Unit IKI-50_104 is the appropriate solution for intelligent... more
Product information "IKI-50_2F_PULS_EW_104_1%"
The universal Feeder Control Unit IKI-50_104 is the appropriate solution for intelligent distribution network stations and offers distribution network operators a high degree of transparency and cost-effectiveness. The IKI-50_104 includes all algorithms for selective fault detection. It is suitable for all neutral point treatments. Switching commands for load switch control can be fed to the IKI-50_104 via communication bus and executed field-related with 1.5-pole switching safety. The IKI-50_104 has an interface with IEC 60870-5-104 protocol, as well as a ModbusRTU master function for querying underlying measuring devices such as IKI-50.

Load flow measurement

  • Voltages, currents, powers, frequencies, cos-phi ...
  • Momentary and average values
  • Limit monitoring

Fault detection

  • directional short-circuit detection
  • directional earth fault detection, directional static earth fault detection (wattmetric method), directional transient earth fault detection (wiper method), earth fault detection via pulse locating
  • early fault detection via detection of transient faults
  • suitable for all neutral point treatments
  • no summing transformer required

Network automation

  • extensive logic functions freely programmable with PC- Software KriesConfig


  • no battery
  • unlimited data retention
  • error indication in case of power failure over 6 hours

IEC 60870-5-104

  • The device has a network connection for direct communication with control centers or telecontrol via IEC-104 protocol.


  • Configuration of the parameters for the IEC-104 connection via integrated webserver

ModbusRTU master function

  • Modbus slave devices (e.g. IKl-50 in the standard version) can additionally be queried via the IKl-50_ 104. The conversion to IEC-104 is then also done in the device.


  •  Password protected configuration
  •  Access rights management- Web server can be switched off- Encryption of the connection via VPN router possible

This variant also offers:

  • Precise voltage measurement with resistive sensors
  • Two-field monitoring and measurement
Device data
Article number2502177
Product designationIKI-50_2F_PULS_EW_104_1%Universal Feeder Control Units | IEC-104 | two-field monitoring | pulsation method | wiper mode | ohmic voltage measurement
Operating elements and display
Direction keysOperation via four direction keys
Two feeder monitoring
Dimensions and installation instructions
Case height x width x depth49 x 96 x 108 mm
Cutout height x width45 x 92 mm
Norm cutout dimensionsDIN IEC 61554:2002-08
Installation typePanel mounting
Sheet thickness1.5 ... 2.5 mm
Operating conditions
Operating temperature-25°C ... 55°C
Storage temperature-25°C ... 70°C
Humiditymax. 95 % relative Feuchte bei 40° C
Protection classIP54 (Front)
Fault detection and failure forecast
Directional short-circuit detection I>>
Threshold current short-circuit detection I>> [A]100, 200, 300, 400, 600, 800, 1000
Automatic response threshold Short circuit detection
Threshold time short-circuit detection I>> [ms]40, 60, 80, 100, 150, 200, 400, 1200, 1600
Directional earth short-circuit detection Ie>>
Earth fault transient detection
Interfaces and communication
USB interfaceMini-USB
Modbus RTU Master
Modbus-RTU Slave
IEC 60870-5-104 Slave
Slave test
Digital Inputs4
Connection cable cross sectionMax. 2,5 mm
Switching capacity relayAC: max. 62,5 VA max. 2A; max. 250 VAC
DC: max. 2A @ 40 VDC
Measurement values and functions
Voltage measurement
Measuring range voltageOhmic
Phase-to-ground voltages
Phase to phase voltages
Measuring range voltage0.02 kV ... 92 kV | Start of voltage measuring range: 2% of Un
Accuracy voltage measurement0.5 % of measurement value
Current measurement
Measuring range current0.5 A ... 1,158 A (with current transformer IKI-LUM)
Zero-sequence current
Accuracy current measurement3 % of measurement value
Conductor currents
Active power
Reactive power
Apparent power
Rotary field detection
Frequency measurement
Mean value determination
Min-max value determination
Phase position
Phase shift cos-phi
Limit value monitoringVoltage, current, frequency, reactive power and voltage
Logic functionsA total of 32 logic rules can be programmed.
Power supply
Auxiliary power supply24...230 VAC/DC (jeweils  15 %)
Power consumption2 W
Insulation voltage2 kV, 1 min