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Figure 3.9
– Backup battery compartment.
3.9.1 Switching to battery power
The switch controls 230 VAC input voltage. If the input voltage is above 260V or
below 180V, the switch is disconnected from the external power supply and
operates from the battery power.
IMPORTANT!
Switching to battery power does not cause interruption in
operation of the switch.
Deviations in the external power supply may be caused by:
phase imbalance
loss of neutral (380 V)
socket error (380 V)
Table 3.9.1
– 230 VAC external power supply state indicators
Power
Description
NORM
The switch is powered from 230 VAC external power supply
ALARM
Power supply voltage is not applied to the switch due to
increased or decreased voltage.
