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Battery MCB rated current
125A
Note:
1. The specs are applicable at ambient temperature of 25°C. If the temperature is higher or lower than this, the CSA of the cable
should be increased.
2. The battery cable should reach at least +90°C heat durability. It is recommended to use double-insulated copper-core flame
retardant cable as battery cable
Load route rated
current
63A
32A
10A
Note:
The specs are applicable at ambient temperature of 25°C. If the temperature is higher or lower than this, the CSA of the cable
should be increased
The MCB capacity should be strictly limited so that it can function properly upon load over-current. The recommended
MCB capacity is 1.5 ~ 2 times larger than the load peak capacity.
The CSA of the system earth cable should be consistent with that of the maximum power distribution cable and no
less than 35mm
2
.
2.3 Mechanical Installation
For the convenience of maintenance, users should maintain a clearance of 800mm at the front of the power supply
system.
Insert the power supply system into the cabinet. Install the screws in the four installation holes as shown in Figure 2-1
to Figure 2-4 with a Phillips screwdriver.
NetSure 501 A50, NetSure 501 AA0, NetSure 701 A51 19-Inch Subrack Power Supply System User Manual
Table 1.1 Battery cable CSA selection
Max. battery current
100A
Table 1.2 DC load cable selection
Max. output
Min. cable
current
CSA
32A
16mm
2
16A
16mm
2
5A
6mm
2
266
Figure 1.1 Installation size of NetSure 501 A50 (unit: mm)
Figure 1.2 Installation size of NetSure 501 AA0 (unit: mm)
Min. cable CSA
Max. cable length (allowable voltage drop: 0.5V)
25mm
2
Max. cable length (volt drop:
0.5V, with min. CSA)
7m
14m
17m
466
483
466.8
483
Chapter 2 Installation Instruction
14m
Max. cable length (volt drop:
Max. cable CSA
0.5V, with max. CSA)
25mm
2
25mm
2
25mm
2
490
5
11m
22m
71m
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