Ground fault detector for ungrounded (floating) AC systems


This device meets or exceeds the requirements of NEC 250.21(B) and CEC 10-106(2) for ground detectors in ungrounded systems.

The IR470LY monitors for ground faults in ungrounded (floating) single-phase and three-phase AC systems by monitoring the system's insulation resistance. The device works on systems up to 793 VAC. Optional voltage coupler accessories extend this range up to 7200 VAC.

Settings for the IR470LY are modified via the onboard DIP switches and potentiometers. The IR470LY utilizes an external supply voltage for power, which allows deenergized systems to also be monitored.

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