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AN 5892

Insulation Monitor

AN 5892


Auxiliary voltage

Alarm value


  • 0032818
  • AN5892.11/101 UH AC230V 50K
The insulation monitor AN5892 of the series VARIMETER IMD monitors the ground resistance of... more

Product description

The insulation monitor AN5892 of the series VARIMETER IMD monitors the ground resistance of isolated DC- and and AC voltage systems (IT-systems) with nominal voltage up to DC 1500 V and AC 0...1000 V. The unit detects symmetrical as well as unsymmetrical faults. The seperate auxiliary supply allows also monitoring when the system is without voltage. To indicate the actual ground resistance value the unit has an LED chain and an analogue output. When a fault is detected the relay switches and the red LED lights up.

Technical specifications

Width: 100 mm
Response value: 50 kΩ
IMD type: AC, DC, AC/DC
Nominal voltage IT system: AC 0 - 1000, DC 0 - 1500 V
Auxiliary voltage: AC
Enclosure design: Switch cabinet
Response value type: Fixed
Type: AN 5892


  • Preventive fire and system protection
  • Insulation monitoring of DC and AC- systems up to 
    1500 V and AC 1000 V nominal voltage
  • No additional coupling device required
  • Monitoring also with voltage-free mains


  • Insulation monitoring according to IEC/EN 61 557-8
  • Fixed response value R:AN
  • Internal reset button
  • External reset and test button can be connected
  • LED indicator
  • 1 changeover contact
  • Programmable for manual reset or hysteresis function
  • Analogue output for insulating value
  • External connection of indicating instrument possible
  • De-energized on trip
  • Width 100 mm