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IKI-20T3
Short-circuit / earth fault indicator, capacitor-buffered, auxiliary power 110 - 230 VAC, 3 relay outputs NC contact with common root
The IKI-20 is suitable for the detection, indication and remote signalling of short circuits in power distribution networks. In addition, in power distribution networks with rigidly, low-resistance or short-time low-resistance grounded neutral point, the detection, indication and remote signalling of ground short-circuits is possible. Non-directional earth faults can be indicated in cleared or isolated networks.
The IKI-20 is maintenance-free because the power supply is provided by the current transformers.
Measurement functions and display
Reliable measured value processing through independent overcurrent-time characteristic (UMZ measurement function)
True current measurement
Self-explanatory LCD-. symbols
additional very bright LED flashing display
Universal setting option of operating parameters
response current and response time separately for short circuit and earth short circuit
reset mode resp. reset time
Relay functions duration or wiping contact
Self test
Function test on site by means of test button or remotely controllable via auxiliary input
Operation in ring and beam network (without switching)
Differentiated display of first and second fault event in networks with AWE
IKI-20T3 Short-circuit / earth fault indicator | capacitor-buffered | auxiliary power 110 - 230 VAC | 3 relay outputs NC with common root
Controls and display
Red LED (1)
Collective display
Buffer of power supply
Capacitor over at least 12h
Dimensions and installation instructions
Case height x width x depth
48 x 96 x 80 mm
Cutout height x width
45 x 92 mm
Norm cutout dimensions
DIN 43700
Installation type
Panel mounting
Operating conditions
Operating temperature
-25°C ... 75°C
Storage temperature
-30°C ... 75°C
Protection class
IP40
Fault Detection
Short circuit detection I>>
✓
Threshold current short-circuit detection I>> [A]
100, 200, 300, 400, 600, 800, 1000, 2000
Threshold time short-circuit detection I>> [ms]
60, 80, 150, 200
Earth short-circuit detection Ie>>
✓
Threshold current earth short-circuit detection Ie>> [A]
40, 80, 100, 150
Threshold time earth short-circuit detection Ie>> [ms]
60, 80, 150, 200
Fault reset
Auto, Manually on the device, After 2h, 4h, External potential-free normally open contact
Interfaces and communication
Slave test
✓
Switching capacity relay
Umax = 220 Vdc, 250 Vac Imax = 0,1 A
Relay outputs
3x (NC)
Power supply
Auxiliary power supply
110 - 230 VAC
Insulation voltage
1 kV / 1 min
CT-supplied
✓
Notes on transformer supply
With a primary current of >=5A through a split-core CT at the inputs L1, L2 or L3, the energy supply is made from the sensors. At primary currents <4A, power is supplied from the energy buffer. With primary currents 1A <I <5A, a mixed supply takes place.
This website uses cookies, which are necessary for the technical operation of the website and are always set. Other cookies, which increase the usability of this website, serve for direct advertising or simplify interaction with other websites and social networks, will only be used with your consent.
