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Isometer, insulation monitoring relay IRDH575B1

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img-20140306-00309
img-20140306-00309

Isometer, insulation monitoring relay IRDH575B1

Timer relay RTo-60
SKU: IzoIRDH575B1

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  • Description
  • Description

Description

Application

  • component of the EDS460 stationary earth fault location system
  • Networks in AC, 3(N)AC 0…760V, DC0…650V operating in IT system
  • modern power supply and control networks containing power electronic converters (rectifiers, inverter AC and thyristor DC drives, UPS)

Key features:

  • IT AC, 3(N)AC, 0…760V, DC0…650V network insulation control,
  • Two independently adjustable alarm values of 1kΩ…10MΩ,
  • INFO button for quick reading of settings and network parameters,
  • Advanced self-test function with signaling relay,
  • external and internal TEST and RESET buttons,
  • Two independent relays to signal resistance alarms,
  • Backlit alphanumeric LCD screen 4×16 characters,
  • RS485 port,
  • alarm memory,
  • ground fault recorder,
  • 0/4…20mA output,
  • An internal contact to disconnect the measuring circuit when connecting several networks with isometers,
  • expandable to a ground fault location system with additional evaluators and transformers

    We offer isometers:

    IRDH575B1-427 AC/DC 20…575V DC 19,2…72V
    IRDH575B1-435 3(N)AC/DC20…575V AC 84…264/DC 77…286V
    IRDH575B1-4227* 3(N)AC/DC20…150V DC 19,2…72V
    IRDH575B1-4235 AC/DC 20…150V AC 88…264/DC 77…286V
    IRDH575B2-435 3(N)AC 340…760V
    DC 340…575V    		 AC 84…264/DC 77…286V

    *Measurement voltageUm=10V(version…-4227).

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