To service the special needs of the mining industry I-Gard has developed the GCHK-100 ground fault relay to improve safety for personnel and equipment in underground or above ground applications. Detection of ground faults is important where safety from electric shock and fire risk can occur and cause serious equipment and personnel hazards.

The relay is designed for use with Resistance-Grounded systems up to 4160V but could be used with Grounded Systems in branch circuit applications where Load current is limited to 800 Amps.

Ground Fault Detection, with 13 adjustable pickup settings from 0.25 - 12.5A, and eight adjustable time delay settings from 0.020 - 10s

ground circuit checking through the use of an auxiliary pilot ground conductor

Frame touch voltage protection, with four adjustable pickup levels from 40 - 100V