E. Dold & Söhne GmbH & Co. KG

Tel.: +49 7723 654-0
E-Mail: dold-relays@dold.com

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E-Mail: ab@dold.com

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AI 897

Insulation monitor

AI 897

Contacts

Nominal voltage

Alarm value

Variant

  • 0001033
  • AI 897 AC45-400HZ 24V 10-80K-OHM
Monitoring of the resistance to earth in ungrounded single- and 3-phasevoltage systems. more

Product description

Monitoring of the resistance to earth in ungrounded single- and 3-phasevoltage systems.

Technical specifications

Width: 45 mm
Response value: 10 - 80 kΩ
IMD type: AC
Nominal voltage IT system: AC 24 - 500 V
Auxiliary voltage: Without
Enclosure design: Switch cabinet
Response value type: Einstellbar
Type: AI 897

Features

  • According to IEC/EN 61 557-8
  • For single- and 3-phase AC-voltage systems
  • Adjustable response value RAN from 10 ... 80 kΩ
  • Without auxiliary supply
  • Closed circuit operation
  • Programmable for:
    - Manual reset (bridge LT1-LT2)
    - Automatic reset (without bridge)
  • External reset button on LT1-LT2
  • Test button to check the function of the device
  • External test button can be connected to PT1-PT2
  • 1 changeover contact
  • Width 45 mm