Kurzschluss- / Erdkurzschlussanzeiger, batteriegepuffert, 1 Relaisausgang Wechsler

Artikelnummer: 2500971
Main functions Detection, display and remote signalling of short circuits in power... more
Product information "IKI-20B1"

Main functions

  • Detection, display and remote signalling of short circuits in power distribution networksdetection
  • indication and remote signalling of earth short-circuits with rigidly, low impedance or short-time low impedance grounded neutral point
  • non-directional indication of earth faults in compensated or isolated networks
  • One relay output

Measurement functions and display

  • reliable measured value processing by independent overcurrent-time characteristic (DMT measuring function)
  • real current measurement
  • self-explanatory LCD symbols
  • additional bright LED flashing display

Universal setting possibility of the operating parameters

  • response current and response time separately adjustable for short circuit and earth short circuit
  • reset mode
  • reset time
  • relay function continuous or wiper contact

Self test

  • Function test on site by means of test button or remotely controllable via auxiliary input

Operation in ring and radial network (without changeover)

  • Differentiated display of first and second fault event in networks reclosers

Maintenance-free due to power supply via current transformers

  • Version IKI-20B: Buffering of power supply via integrated lithium battery



Technical data

Trip current I>>

100 A, 200 A, 300 A, 400 A, 600 A, 800 A,1000 A, 2000 A

Trip time tI>>

60 ms, 80 ms, 150 ms, 200 ms

Trip current IE>

40 A, 80 A, 100 A, 150 A

Trip time tIE>

60 ms, 80 ms, 150 ms, 200 ms


2 h, 4 h, manuell / extern, automatisch

Inputs: Remote reset via external dry contact
  4x input for current sensor
  Remote test via external dry contact

Power supply:

Partly CT-powered from primary current > 1 A,
Completely CT powered from primary current > 5 A

Dimensions 96 x 48 x 80 mm (w x h x d)
Recommended panel cutout 92 x 45 mm (w x h)

Environmental conditions:


Operational temperature

Standard: -25 °C ... +55 °C, extended: -25 °C ... +75 °C

Storage temperature

-30 °C ... +70 °C

Degree of protection

IP 40

Current transformers:


Input 1, 2, 3

Cable-mounted CTs type IKI-LU
Bushing-mounted CTs for specific switchgears

Input 4:

Balanced core CT  3*I0

Outputs: Potential free locking or latching contacts:

1 x Relay output

  • 1 x NO or 1 x NC for all faults