Dold Italia S.r.l.

Via Privata Passo Pordoi, 5
20139 Milano

Insulation monitor

MK 5880N


Auxiliary voltage

Alarm value

Terminal type

Prewarning value

Approvals and Markings


  • 0054044
  • MK5880N.12 AC50-400HZ 220-240V
The insulation monitors MK 5880N and MH 5880 of the VARIMETER IMD family provides best... altro

Descrizione del prodotto

The insulation monitors MK 5880N and MH 5880 of the VARIMETER IMD family provides best insulation monitoring of pure three-phase and AC IT systems in a state of the art way fulfilling the relevant standards. The adjustment of the setting values is simple and user friendly done on 2 rotary switches on the front of the device. The MH 5880 also has a galvanic separated analogue output and a 11 step LED chain for display the actual insulation value.

Specifiche tecniche

Width: 22,5 mm
Response value: 5 - 100 kΩ
IMD type: AC
Nominal voltage IT system: AC 0 - 500 V
Auxiliary voltage: AC, DC
Earth fault indicator: Yes
Response value type: Adjustable
Enclosure design: Switch cabinet
Type: MK 5880N


  • According to IEC/EN 61557-8
  • For single and 3-phase AC-systems up to 0 ... 500 V and 10 ... 1000 Hz
  • Monitors also disconnected voltage systems
  • Adjustable tripping value RAL of 5 ... 100 kΩ
  • De-energized on trip
  • Auxiliary voltage, measuring circuit and output contacts are galvanically separated
  • Manual and auto reset
  • With test and reset button
  • Connections for external test and reset buttons possible
  • LED indicators for operation and alarm
  • 2 changeover contacts
  • MK 5880N/200 with additional prewarning
    - Adjustable prewarning value 10 kΩ ... 5 MΩ
    - 1 output relay for alarm and 1 for pre-warning
  • MH 5880/500: similar to MK 5880N but with galvanic separated analogue output and 11 step LED chain for the actual insulation value
  • Wire connection: also 2 x 1.5 mm2 stranded ferruled, or 2 x 2.5 mm2 solid DIN 46 228-1/-2/-3/-4
  • As option with pluggable terminal blocks for easy exchange of devices
    - With screw terminals
    - Or with cage clamp terminals
  • MK 5880N: 22.5 mm width
    MH 5880: 45 mm width