Product highlights

• Extensive earth-fault protection portfolio with

unique multifrequency admittance-based

protection for higher sensitivity and selectivity

• Advanced and fast fault location of short

circuits and earth faults

REF630 also includes a fault locator that locates

short circuits in radial distribution networks and

earth faults in effectively and low-resistance

earthed ones. If the fault current is as high as or

higher than the load current, earth faults in

isolated neutral distribution networks will also

be located.