• Increase of the Isometers' nominal voltage range
• Used with Isometers of the IRDH… and iso685 series
• For AC up to 1650 V
The coupling device AGH204S-4 is designed to extend the nominal voltage range of the ISOMETER® iso685… and IRDH… series to AC, 3(N)AC 0…1650/0…1300 V, 50…400 Hz. The coupling device is connected to the system to be monitored according to the wiring diagram and connected to the terminal AK of the ISOMETER® by means of terminal AK… .