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  • IRDH575

    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.

  • Key Features: IRDH575

    • Meets requirements for ground detectors in accordance with NEC 250.21(B) and CEC 10-106(2)
    • Ground fault detection for ungrounded AC/DC systems
    • Ground fault location in ungrounded AC/DC systems with EDS series location device
    • Two separately adjustable insulation resistance response values, 1 kΩ...10 MΩ
    • Works on pure AC, pure DC, and mixed AC/DC systems, including systems with variable frequency drives (VFDs)
    • Digital display showing readings in real-time
    • Easy-to-use, onboard menu for managing settings
    • Simple, automatic ground fault location with EDS device via RS-485
    • Automatic self-test
    • Analog output
    • Built-in test and reset buttons
    • Connections for external test and reset
    • Latching or non-latching operation, selectable
    • Two SPDT contact outputs, normally energized or normally de-energized operation
    • History memory storing up to 300 events
  • Applications: IRDH575

    • AC systems, single- and three-phase
    • Pure DC and mixed AC/DC systems
    • UPS systems and battery systems
    • Systems with variable frequency drives (VFDs)
    • Systems with power conversion components, including rectifiers and inverters
    • Large industrial systems
    • Ungrounded systems with high leakage capacitances
    • Interconnected ungrounded systems
  • Ordering information: IRDH575

    NameResponse ValueSystem VoltageEnhanced temperature and vibration protectionHistory memory for up to 300 recordsCommunication capability0(4) - 20 mA analog outputSupply VoltageOrdering Number
    IRDH575B1-4351 - 10000 kΩ AC 20 - 575 V (50 - 460 Hz) DC 20 - 575 V AC 340 - 760 V (50 - 460 Hz) DC 340 - 575 V AC 88 - 264 V (40 - 460 Hz) DC 77 - 286 V B91065500
    IRDH575B1-4271 - 10000 kΩ AC 20 - 575 V (50 - 460 Hz) DC 20 - 575 V AC 340 - 760 V (50 - 460 Hz) DC 340 - 575 V DC 19.2 - 72 V B91065502
  • Downloads: IRDH575

    Document Name Language Date Download
    Technical Bulletin / Datasheet
    IRDH575
    English 03.2011
    Download
    Installation Bulletin
    IRDH575
    English 10.2011
    Download
    User Manual
    IRDH575
    English 08.2011
    Download
    User Manual
    Modbus TCP Integration
    English 12.2016
    Download
    Brochure
    Overview of Products
    English 06.2017
    Download
  • Accessories: IRDH575

    Ground Fault Location Modules

    Ground fault location module for ungrounded AC/DC systems

    NameOrdering Number
    EDS440-L-4B91080202
    EDS440-S-1B91080201
    EDS441-L-4B91080205
    EDS441-S-1B91080204
    EDS460-D-1B91080001
    EDS460-D-2B91080002
    EDS460-L-1B91080003
    EDS460-L-2B91080004
    EDS490-D-1B91080009
    EDS490-D-2B91080010
    EDS490-L-1B91080011
    EDS490-L-2B91080012
    EDS461-D-1B91080005
    EDS461-D-2B91080006
    EDS461-L-1B91080007
    EDS461-L-2B91080008
    EDS491-D-1B91080013
    EDS491-D-2B91080014
    EDS491-L-1B91080015
    EDS490-L-2B91080016
    Remote Communication Systems

    Ethernet and Modbus/TCP communication gateway for BENDER devices

    NameOrdering Number
    COM465IP-230VB95061065
    COM465IP-24VB95061066
    COM461MTB95061021
    COM462RTUB95061022