ISOMETER® isoGEN423

Insulation monitoring device for mobile generators
Protective isolation with insulation monitoring and shutdown
Two response values with settings between 5 and 200 kΩ (Factory settings 46 kΩ and 23 kΩ)
Communications interface supporting Modbus RTU, IsoData, and BMS
Overvoltage and undervoltage protection

The isoGEN423 monitors the insulation resistance of ungrounded AC, AC/DC and DC systems with nominal system voltages of 0…400 V. The monitored system can be single-phase AC, 3- or 4-wire AC, AC/DC mixed-phase, or DC.

Automatically adapts to the maximum permissible system-leakage capacitance of 5 μF. DC components existing in AC systems do not influence the operating characteristics, when a minimum load current of DC 10 mA flows. Using a separate supply voltage allows de-energized systems to be monitored.

Questions? Contact us!

Insulation monitoring device for mobile generators
Protective isolation with insulation monitoring and shutdown
Two response values with settings between 5 and 200 kΩ (Factory settings 46 kΩ and 23 kΩ)
Communications interface supporting Modbus RTU, IsoData, and BMS
Overvoltage and undervoltage protection

The isoGEN423 monitors the insulation resistance of ungrounded AC, AC/DC and DC systems with nominal system voltages of 0…400 V. The monitored system can be single-phase AC, 3- or 4-wire AC, AC/DC mixed-phase, or DC.

Automatically adapts to the maximum permissible system-leakage capacitance of 5 μF. DC components existing in AC systems do not influence the operating characteristics, when a minimum load current of DC 10 mA flows. Using a separate supply voltage allows de-energized systems to be monitored.

Questions? Contact us!

Features

Monitoring the insulation resistance for unearthed AC/DC systems
Measurement of the system voltage (true r.m.s.) with undervoltage and overvoltage detection
Measurement of DC system voltages to earth (L1+/PE and L2-/PE)
Two operating modes: GEn and DC
Automatic 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 5…200 kΩ (Alarm 1, Alarm 2)
Alarm signalling via LEDs (AL1, AL2), a display and alarm relays (K1, K2)

Automatic device self test with connection monitoring
Selectable N/C or N/O relay operation
Measured value indication via multi-functional 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

AC main circuits up to 400 V
DC main circuits up to 400 V
Generators according to DIN VDE 0100-551