ISOMETER® isoPV425 con AGH420

ISOMETER® isoPV425 con AGH420

The ISOMETER® of the isoPV425* series monitors the insulation resistance of unearthed AC/DC main circuits (IT systems) AC, AC/DC 0…690 V resp. DC 0…1000 V.

DC components existing in AC/DC systems do not influence the operating characteristics. An external supply voltage allows de-energised systems to be monitored too.


* Delivery time on request

  • Features
  • Applications
  • Accessories
  • Ordering information
  • Downloads
  • Insulation monitoring for unearthed systems AC, AC/DC 0…690 V, DC 0…1000 V
  • Nominal system voltage measurement with undervoltage/overvoltage detection
  • Measurement of the voltages system to earth (L+/PE and L-/PE)
  • Measurement of the system leakage capacitance
  • BMS interface
  • Information about the point of fault L+/L- via display and relay contacts
  • Automatic adaptation to the system leakage capacitance up to 500 μF
  • Supply voltage range DC 24…240 V/AC 100…240 V
  • Self monitoring and connection monitoring system/earth with automatic notification
  • LEDs: Power On, Alarm 1, Alarm 2
  • Internal/external test/reset button
  • Two alarm relays with single pole (one N/O contact each)
  • N/O or N/C operation, selectable
  • Fault memory behaviour, selectable
  • Multi-functional LC display
  • Adjustable response delay
  • Compact two-module enclosure (36 mm) plus coupling in a two-module enclosure
  • Quick wiring by push-wire terminals
  • AC, DC or AC/DC main circuits
  • Solar systems with directly connected inverters
  • Solar systems with high system leakage capacitances
  • Solar systems with high but slow voltage fluctuations
  • Systems including switched-mode power supplies


Optional accessories for ISOMETER® isoPV425 con AGH420

TypeArt. No.
Mounting clip for screw mounting (1 piece per device)B98060008

Variants of ISOMETER® isoPV425 con AGH420

TypeNominal system voltage* UnSupply voltage* USArt. No.**
isoPV425-D4 with AGH420DC 0…1000 V, AC 0…690 VDC 24…240 V, AC 100…240 VB71036303
* Absolute values
**(B7… = push-wire terminal / B9… = screw-type terminal)

Downloads for ISOMETER® isoPV425 con AGH420



Category Prodotto Language Size Download