KE RT Series UPS 6-10kVA UL 208-220-230-240Vac User Guide English 20180130 This manual is for qualified personnel only
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Power Cables
The cable design shall comply with the voltages and currents provided in this section. Follow local
wiring codes and laws taking into consideration the environmental conditions (temperature and
physical).
WARNING
Upon starting, ensure that you are aware of the location and operation of the external
isolators which are connected to the UPS input/bypass supply of the mains
distribution panel. Check to see if these supplies are electrically isolated. Post any
necessary warning signs to prevent any inadvertent operation.
For future expansion, it is recommended to install power cable according to the full rated capacity.
UPS
module
Cable Dimension
AC Input
(mm
2
)
AC Output
(mm
2
)
DC Input
(mm
2
)
Grounding
(mm
2
)
6KVA
6
6
6
6
10KVA
10
10
10
10
CAUTION
Protective earth cable: Connect each cabinet to the main ground system. For
Grounding connection, follow the shortest route possible.
WARNING
Failure to follow adequate earthing procedures may result in electromagnetic
interference or in hazards involving electric shock and fire.
4.5
Power cable connections
Once the equipment has been finally positioned and secured, connect the power cables as described in
the following procedure.
Verify the UPS is totally isolated from its external power source and also all power isolators of the UPS
are open. Check to see if they are electrically isolated, and post any necessary warning signs to prevent
their inadvertent operation.
Select the appropriate power cable (Refer to the table above).
Pay attention to the diameter of the connection terminal of the cable that should be greater than or equal
to that of the connection poles;
Connect the safety earth and any necessary bonding earth cables to the copper earth screw located on
the floor of the equipment below the power connections. All cabinets in the UPS must be grounded
properly.
