Safety instructions
16
IRDH275BM-7_D00123_06_M_XXEN/07.2018
2.5 Directions for installation
The terminals and KE shall be connected by a separate wire to the pro-
tective conductor (PE). If the device is connected by means of terminal AK via
the coupling device to a system under operation, the terminals and KE
must not be disconnected from the protective conductor (PE).
Risk of property damage due to unprofessional
installation!
If more than one insulation monitoring device is connected
to a conductively connected system, the system can be
damaged. If several devices are connected, the device does
not function and does not signal insulation faults. Make sure
that only one insulation monitoring device is connected in
each conductively connected system.
Ensure disconnection from the IT system!
When insulation or voltage tests are to be carried out, the
device shall be isolated from the system for the test period.
Otherwise the device may be damaged.
Check proper connection!
Prior to commissioning of the installation, check that the
device has been properly connected and check the device
functions. Perform a functional test using an earth fault via
a resistance that is suitable for the mains voltage.
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