KE 4256-3230 Keatec T Series UPS 10-40K 380Vac Users Guide English 20170126 This manual is for qualified personnel only.
Page 8
External Battery
The UPS and its associated batteries are protected against the effect of over-current through a
DC compatible thermo-magnetic circuit-breaker (or a set of fuses) located close to the battery.
UPS Output
Any external distribution board used for load distribution shall be fitted with protective
devices that protect the UPS from becoming overloaded
.
Over-Current
Protection devices shall be installed at the distribution panel of the incoming mains
supply.
CAUTION!
Select a thermo magnetic circuit-breaker with an IEC 60947-2 trip curve C
(normal) for 125% of the current as listed below
.
3.6 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
cabinet
Cable Dimension
AC Input
(mm
2
)
AC Output
(mm
2
)
DC Input
(mm
2
)
Grounding
(mm
2
)
10KVA
4
4
10
4
15KVA
6
6
16
6
20KVA
8
8
20
8
30kVA
12
12
35
8
40kVA
16
16
35
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.
3.7 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
