IKI-20B1

Short-circuit / earth short-circuit indicator, battery buffered, 1 relay output changeover contact

Item number: 2500971

Variants

The IKI-20 is suitable for the detection, indication and remote signalling of short circuits in... more

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Product information "IKI-20B1"

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

Buffering of power supply

Using integrated lithium battery (lifetime >17 years with current transformers not connected)

Relay outputs as floating transient or continuous contacts

1 relay with 1 NO and 1 NC for all faults

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Device data
Article number	2500971
Product designation	IKI-20B1 Short-circuit / earth short-circuit indicator \| battery buffered \| 1 relay output changeover contact
Controls and display
Red LED (1)	Collective display
Buffer of power supply	Lithium battery
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)
Potential-free contacts	1 relay with 1 NO contact and 1 NC contact for all fault messages
Power supply
Auxiliary power supply	Powered by CTs
Insulation voltage	1 kV / 1 min
Battery	Lithium battery: 3,6 V; LS14500; Kries-item.no.: 3500934
Battery life	Greater than 17 years with current sensors not connected; for operation with current sensors and operating currents greater than 5A: at least 30 years
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.

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Datasheet
Manual (Registered users)