We offer you first-class quality and safety combined with global service and every support in resolving your monitoring problems.

  • Electrical safety for unearthed power supplies (IT systems)
  • Insulation monitoring equipment, insulation fault location systems
  • Power supplies for medical applications
  • Measuring and monitoring relays
  • Electrical safety for earthed power supplies (TN systems)
  • Using renewable energies efficiently: wind power, photovoltaics
  • Test systems for electrical equipment and medical technology

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.

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.

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

CategoryNameSizeLanguageTimestampD-/B-Number
Declarations of Conformity UKCA - isoxx425 142.1 KB 2022/12/20 05:59:4420.12.2022 05:59:44
CE Declarations of conformity isoXX425 151.9 KB 2023/01/09 06:50:5109.01.2023 06:50:51
Quickstarts isoUG425 995.0 KB DE2021/04/20 08:16:0320.04.2021 08:16:03D00220
Quickstarts isoUG425 995.0 KB EN2021/04/20 08:16:0320.04.2021 08:16:03D00220
Manuals isoUG425 1.9 MB DE2021/04/20 08:07:5420.04.2021 08:07:54D00220
Datasheets isoUG425 337.2 KB DE2019/05/13 10:31:3513.05.2019 10:31:35D00220
Datasheets isoUG425 332.9 KB EN2019/05/13 10:31:3713.05.2019 10:31:37D00220
Datasheets isoUG425 303.5 KB ES2020/04/27 07:07:0627.04.2020 07:07:06D00220
Datasheets isoUG425 5.7 MB ZH2019/05/13 10:31:3313.05.2019 10:31:33D00220
Manuals isoUG425 1.8 MB EN2021/04/20 08:09:3520.04.2021 08:09:35D00220
Manuals isoUG425 1.5 MB ES2021/04/20 08:14:3420.04.2021 08:14:34D00220
Software Modbus RTU - Monitor isoxx425 V2.2.2 setup 7.1 MB 2019/05/13 10:31:5913.05.2019 10:31:59