Innovative technologies for safe handling of electrical power to achieve high availability

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


  • Increase of the ISOMETER® nominal voltage range
  • Used with ISOMETER® of the iso685 series
  • For AC up to 1150 V, DC up to 1760 V

The AGH150W or AGH150W-4 coupling device is designed to extend the nominal voltage range of the ISOMETER® iso685… series. The coupling device is connected to the system being monitored by two poles and connected to the terminal AK resp. L1/L2/L3 of the ISOMETER® by means of the terminal AKxxx.



Downloads for AGH150…

Datenblätter AGH150xx 406.9 KB DE09.06.2022 10:53:56D00093
Datenblätter AGH150xx 404.1 KB EN09.06.2022 10:54:38D00093
Datenblätter AGH150xx 405.2 KB ES09.06.2022 10:55:51D00093
Datenblätter AGH150W-4 163.1 KB ZH13.05.2019 10:31:32D00093
Handbücher AGH150xx 1.5 MB DE09.06.2022 10:45:50D00093
Handbücher AGH150xx 1.5 MB EN09.06.2022 10:45:50D00093
Handbücher AGH150W-4 174.0 KB FR13.05.2019 10:31:54D00093

Optional accessories for AGH150…

AGH150… Variants

TypeNominal system voltage UnArt. No.
AGH150WAC 0…1150 V/DC 0…1100 VB915576
AGH150W-4AC 0…1150 V/DC 0…1760 VB98018006