Electronic coupler AGH204S-4

for electrical networks

Increase of the ISOMETER® nominal voltage range Used with ISOMETER® of the iso685 series For AC up to 1650 V In conjunction with an ISOMETER®, the AGH204S-4 coupling device is used for monitoring the insulation of 3AC IT systems (unearthed systems). It is designed to extend the nominal voltage range of the ISOMETER® series shown in the wiring diagram at terminal AK160 up to 3(N)AC 0…1650 V, 50…400 Hz and DC 0…1840 V. At terminal AK80, it extends the range up to 3(N)AC 0…1300 V, 50…400 Hz.