ISOMETER® isoUG425

  • Insulation monitoring device for DC IT systems
  • Application control circuits
  • Two separately configurable response values
  • Multi-functional LC display
  • Passive measuring method without measuring voltage

The ISOMETER® monitors the asymmetrical insulation resistance of unearthed DC systems (IT systems) with nominal voltages of DC 12…120 V.

The maximum permissible system leakage capacitance Ce is 50 μF.

Questions? Contact us!

ISOMETER® isoUG425
ISOMETER® isoUG425
  • Insulation monitoring device for DC IT systems
  • Application control circuits
  • Two separately configurable response values
  • Multi-functional LC display
  • Passive measuring method without measuring voltage

The ISOMETER® monitors the asymmetrical insulation resistance of unearthed DC systems (IT systems) with nominal voltages of DC 12…120 V.

The maximum permissible system leakage capacitance Ce is 50 μF.

Questions? Contact us!

Features

  • Monitoring of asymmetrical insulation resistances for unearthed DC systems
  • Measurement of the system voltage (r.m.s. and DC) with undervoltage and overvoltage detection
  • Measurement of the system DC voltages to earth (L+/PE and L-/PE)
  • Configurable adaptation to the system leakage capacitance up to 5 μF
  • Selectable start-up delay, response delay and delay on release
  • Two separately adjustable response value ranges of 1…100 kΩ (Alarm 1, Alarm 2)
  • Alarm signalling via LEDs (AL1, AL2), a display and alarm relays (K1, K2)
  • N/C operation or N/O operation of the relays selectable
  • Measured value indication via multifunctional LCD
  • Fault memory can be activated
  • RS-485 (galvanically isolated) including the following protocols:
    – BMS interface (Bender measuring device interface) for data exchange with other Bender components
    – Modbus RTU
    – IsoData (for continuous data output)
  • Password protection to prevent unauthorised parameter changes

Applications

  • Simple battery systems
  • Conveniently sized DC control voltage systems
  • DC lamp circuits

ISOMETER® isoUG425 Variant(s)

TypeSupply voltage USNominal voltage UnSystem leakage capacitanceVersionArt. No.
isoUG425-D4-4AC 100…240 V, 47…63 Hz / DC 24…240 VDC 12…120 V≤ 50 μFpush-wire terminalB71036320

Optional Accessories for ISOMETER® isoUG425

TypeArt. No.
Mounting clip for screw mounting (one piece per device)B98060008
Mounting frame XM420B990994 

Downloads for ISOMETER® isoUG425

NameCategorySizeLanguageTimestampD-/B-Number
UKCA - isoxx425 Declarations of Conformity 142.1 KB 2023/06/1212.06.2023
isoXX425 CE Declarations of conformity 146.2 KB 2023/07/1414.07.2023
isoUG425 Quickstarts 971.0 KB DE2024/01/3030.01.2024D00220
isoUG425 Quickstarts 971.0 KB EN2024/01/3030.01.2024D00220
isoUG425 Manuals 2.4 MB DE2023/10/3131.10.2023D00220
isoUG425 Datasheets 337.2 KB DE2019/05/1313.05.2019D00220
isoUG425 Datasheets 332.9 KB EN2019/05/1313.05.2019D00220
isoUG425 Datasheets 303.5 KB ES2020/04/2727.04.2020D00220
isoUG425 Datasheets 5.7 MB ZH2019/05/1313.05.2019D00220
isoUG425 Manuals 2.5 MB EN2023/10/3131.10.2023D00220
isoUG425 Manuals 1.5 MB ES2021/04/2020.04.2021D00220
Modbus RTU - Monitor isoxx425 V2.2.2 setup Software 7.1 MB 2019/05/1313.05.2019