EARTH-FAULT and short-circuit indicator
Type EKL8000

The earth-fault and short-circuit indicator type EKS can be used in radial networks with one input and open-ring networks which are solidly earthed or low resistance earthed. The indication of short-circuits is done by one LED for each phase. Earth-faults are indicated by one LED . The potential-free connection between the short-circuit sensors to the display unit is done by fibre optic cables. The short-circuit sensor can be mounted on screened and unscreened cables.

The connection between the earth-fault sensors and the display unit is also done by potential-free fibre optic cables. The earth-fault sensor must be mounted on screened cables. All sensors are divisible and can be retrofitted on the cable. The display device is powered by an exchangeable lithium battery. Alternatively the display device can be connected to an auxiliary power supply.

The earth-fault and short-circuit indicator type EKL8000 can be equipped with a second relay for a separate remote indication of earth-faults and short-circuits.

The earth-fault and short-circuit indicator type EKL8000 consists of:

– One display unit for displaying the earth-fault and short-circuit
– Three sensors type LK (page 17) for detecting the short-circuit
– One sensor type LE (page 18) for detecting the earth-fault

Order Data
Type EKL8000 | panel-mounted 22.21.10
Type EKL8001 | panel-mounted, two relays 22.22.10
Type EKL8001 | surface-mounted, two relays 22.23.20
Type EKL8002 | surface-mounted, three relays 22.24.20

Features and Benefits

Potential free connection to short-circuit and earth-fault sensors
Short-circuit: seven trip currents, see sensor type LK
Earth-fault: seven trip currents, see sensor type LE
Four response delays between 40 ms and 300 ms
LED indication
Passage of 2nd short-circuit by double blinking
Indication of permanent earth-faults by double blinking
Button to test the function of the display unit
Reset function:
– Manual by push-button
– Time: four values between 1 h and 12 h
– Remote reset contacts
– Optional: by recovering auxiliary power supply
Power supply:
– Lithium battery type AA 3.6 V
– Optional: 12-110V DC
– Optional: 115 / 230V AC
Contacts for remote monitoring
Permanent or wipe contact type can be selected on site
Panel-mounted version:
Optional: second relay for separate remote indication of earth-faults and short-circuits
Surface-mounted version:
Two on site configurable relays by DIP switch
Optional: third relay for remote indication of empty battery
Surface-mounted and panel-mounted housing
Optional: blinking lamp type BL4.1 / BL6 for outdoor indication


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