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3.3.6 CABLE SPECIFICATION
All cables and protective devices must be selected in accordance with national and local regulations and
codes of practice (e.g. BS7671:2008 or relevant country standards) to suit the maximum capacity of the
system, as shown in the table below.
NOTE: If you install a system containing fewer than six power modules with a view to increasing the system
capacity it at a later date as your load increases, you should consider using cables rated for the maximum
system rating at the outset. This will simplify the future update process and avoid having to shut-down the
system at a later date to replace the power cables. ALL power modules have internal fuse protection
INPUT
Maximum Input Current (A)
Recommended Cable Size) (mm
Internal Input MCB Fitted
OUTPUT
Maximum Output Current
Recommended Cable Size (mm
Internal Output MCB Fitted
BATTERY
Maximum DC Current
Suggested Cable Size (mm
Internal DC Protection Fitted
3.3.7 ELECTRICAL PLANNING
All electrical power connections are made to terminals located on the rear of the cabinet near the top. Gland plates
are fitted to the top and bottom of the cabinet immediately above the power terminals to allow either top or bottom
cable entry.
If the cabinet is to be installed in a location with restricted rear access, you should ensure that suitably-contained
power cables are available before the cabinet is moved to its intended final position
3.3.8 CABLINING PROCEDURE
3.3.8.1 SAFETY NOTES
Please ensure you read and understand the following safety notes before you begin the electrical
installation.
1. All the operations detailed in this section must be performed or supervised by a qualified, authorised
electrician.
2. Once the electrical installation is completed the initial system start-up must be performed by a
qualified engineer, trained and authorised by Uninterruptible Power Supplies Ltd..
3. Do not connect the system if there is water or moisture present.
4. When working on the input power cables, you must ensure that the AC INPUT supply is isolated at the
mains switchgear panel and, where possible, locked out. Warning notices should be posted where
applicable to prevent the inadvertent operation of the LV supply isolator(s).
5. Ensure the following conditions are met prior to starting work on the equipment:
a) No mains voltage is present from the mains switchgear panel.
b) All loads are shut down and disconnected.
EL1005X
A
10
2
)
6
10A
Type C
2
2
)
4
6 x 2A
Type B
28
2
)
6
32A
MCB
Table 3.3
18
EL1012X
EL1030X
A
A
13.5
25
6
6
16A
25A
Type C
Type C
5
10.5
4
4
6 x 4A
6 x 6A
Type B
Type B
28
100
10
25
32A
100A
MCB
FUSE
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