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IKI-20T1
Short-circuit / earth fault indicator, capacitor-buffered, auxiliary power 110 - 230 VAC, 1 relay output change-over contact
Item number: 2500974
Variants Item number: 2500974
The IKI-20 is suitable for the detection, indication and remote signalling of short circuits in... more
Product information "IKI-20T1"
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.
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
Power supply buffering
- Using low voltage (110... 230 VAC); additional capacitor buffering for at least 12 h
Relay outputs as floating transient or permanent contacts
- 1 relay with 1 NO contact and 1 NC contact for all faults
Device data | |
Article number | 2500974 |
Product designation | IKI-20T1 Short-circuit / earth fault indicator | capacitor-buffered | auxiliary power 110 - 230 VAC | 1 relay output change-over contact |
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 | 1x (Changeover) |
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. |