Digital ground fault detector and ground fault location controller for ungrounded AC/DC systems


This device meets or exceeds the requirements of NEC 250.21(B) and CEC 10-106(2) for ground detectors in ungrounded AC systems, as well as the new 2014 requirement of NEC 250.167(A) for ungrounded DC systems.

The IRDH575 monitors for ground faults in ungrounded single-phase AC, three-phase AC, and DC systems by monitoring the system's insulation resistance. The AMP Plus measuring principle meets the requirements of modern power systems, including pure DC systems, systems with rectifiers, and systems with variable frequency drives (VFDs). Additionally, the IRDH575 works in combination with EDS series devices to create a ground fault location system for ungrounded circuits.

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