The short-circuit indicator type MF can be used in radial networks with one input and open-ring networks. The indication of the short-circuit is done by one LED for each phase. The 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 that should not fail in case of a fault.
The short-circuit indicator type MF consists of:

– One display unit for displaying short-circuits
– Three sensors type LK or SK for detecting short-circuits
The short-circuit indicator type MF is available in two versions:

Version MF-L: The connection between the sensors and the display unit is potential-free and is done by fibre optic cables. The sensor can be mounted on screened and unscreened cables.
Version MF-S: The connection between the sensors and the display unit is done by cable. The sensors must be mounted on screened cables only.

Parameter Name	Parameter Value
Measured value	short-circuit
Display	LED
Type	panel-mount integrated