Dold Industries Ltd

11 Hamberts Rd. Blackall Ind. Estate
South Woodham Ferrers
GB-Essex, CM3 5UW
RP 5888

Insulation monitor

RP 5888


Auxiliary voltage

Alarm value


  • 0060656
  • RP5888.12 AC/DC24-80V 5K...5M-OHM
The insulation monitor RP 5888 of the VARIMETER IMD family provides best and up to date... more

Product description

The insulation monitor RP 5888 of the VARIMETER IMD family provides best and up to date insulation monitoring of AC-IT systems. The measuring principle is overlay with DC-measuring voltage. The setting of the parameters and the switching values is done by simple and operator friendly rotational switches on front of the device. The operating status is indicated user friendly via three multicolour LEDs. In addition the actual insulation resistance value is available on an analogue output.

Technical specifications

Width: 70 mm
Response value: 5 - 5000 kΩ
IMD type: AC
Nominal voltage IT system: AC 0 - 500 V
Auxiliary voltage: AC/DC
Earth fault indicator: Yes
Connection for indicator: Yes
Response value type: Adjustable
Enclosure design: Distribution board
Type: RP 5888


  • Increasing the availability of machines and plants
  • For preventive maintenance
  • According to IEC/EN 61 557-8
  • With configurable analogue output for insulating value
  • For three-phase and A.C. power systems with 0 ... 500 V and 10 ... 1000 Hz
  • Adjustable alarm value for ground fault RAL of 5 k ... 5 MΩ
  • Monitors also disconnected voltage systems
  • Energized / de-energized on trip settable
  • Measuring circuit, auxiliary voltage, output contacts and analogue output are galvanically separated
  • Programmable for manual reset or hysteresis function
  • With test and reset button
  • Connections for external test and reset buttons possible
  • LED indicators for operation and alarm
  • 2 changeover contacts
  • Output function programmable
  • Width: 70 mm