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The label should contain the following or an equivalent text:
Before working on this circuit:
• Isolate Uninterruptible Power System (UPS).
• Then check for Hazardous Voltage between all terminals including the
protective earth.
Risk of voltage feedback
To connect the mains cables to the respective terminals according to configuration
of the available equipment.
Connection to the mains:
Connect the power supply cables N-R-S-T to the input terminals (X4), (X1), (X2)
and (X3), respecting the order of neutral and phases indicated on the label of the
device and in this manual. If the order of the phases is not respected, the UPS
cannot be started and displays an error message.
When there are discrepancies between the labeling and the instructions in this
manual, the label will always prevail.
4.3.2. CONNECTION OF THE OUTPUT, TERMINALS (X6 TO X9)
As this is a device with class I protection against electric shocks, it is essential to
install a protective earth conductor (connect earth
( )
). Connect the conductor
to the terminal (X5), before connecting the power supply to the UPS input.
To connect the output cables to the respective terminals according to
configuration of the available equipment.
Connection to the output:
Connect the load cables N-U-V-W to the output terminals (X9), (X6), (X7) and
(X8), respecting the order of neutral and phases indicated on the label of the
device and in this manual. If the order of the phases is not respected, the UPS
cannot be started and displays an error message.
When there are discrepancies between the labeling and the instructions in
this manual, the label will always prevail.
It is recommended that a connected load over an external distribution over
multiple (min. 3) automatic circuit breakers share 1/3 of the maximum UPS
nominal output current. If one of these outlets short circuits, then the