Insulation monitoring device for unearthed AC, AC/DC and DC systems (IT systems)

The ISOMETER® is an insulation monitoring devices in accordance with IEC 61557-8 for IT systems. The devices are universally applicable in AC, 3(N)AC, AC/DC and DC systems. AC systems may include extensive DC-supplied loads (such as rectifiers, inverters, variablespeed drives).

  • Predefined measurement profiles
  • Reliable measurement of insulation resistance, voltage, capacitance and frequency
  • Integrated web server
  • Modbus TCP/RTU
  • History memory
Nominal System Voltage Supply Voltage Option ‘W’ Type Art No
0…690 V;

0.1…460 Hz

0…1000 V 24…240 V;

50…400 Hz

24…240 V iso685-D B91067010
-40…+70 °C,

3K5, 3M7

iso685W-D B91067010W


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      +90 (216) 314 93 20

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      Şerifali Mah. Bayraktar Bulvarı Sehit Sokak No:5 Umraniye 34775 İstanbul, Turkey