A ground fault occurs when one of the phase conductors of a cable comes in contact with the ground wire of that cable. This will cause current to be placed on the ground wire, giving it potential for electrical shock. Our GF-180 ground fault will detect a small amount of ground curent and trip the circuit breaker. The AMR ground fault package is retrofittable with any of our existing monitors or may be used on other systems with optional power supply.


  • Four easy connections per circuit with the GM-150 Ground Monitor System or GM-200 Single Circuit System.
  • Variable current adjustment that allows you to select ground fault current.
  • Plug-in modules mounted with simple wire ties that can be changed without shutting down the entire power center.
  • Multi-circuit Monitoring is done by simply adding plug-in modules.