Vertiv NetSure 531 A91 User Manual

4 Chapter 2 Installation Instruction
NetSure 531 A41, NetSure 531 A91 Subrack Power system User Manual
Table 2-3 DC load cable selection
Load route rated
current
Max. output
current
Min. cable
CSA
Max. cable length (volt drop:
0.5V, with min. CSA)
Max. cable CSA
Max. cable length (volt drop:
0.5V, with max. CSA)
100A
80A
25mm
2
14m
50mm
2
20m
63A
50A
16mm
2
9m
25mm
2
14m
32A
25A
10mm
2
11m
25mm
2
29m
16A
12A
6mm
2
14m
25mm
2
48m
10A
8A
6mm
2
23m
25mm
2
98m
Note: The specs are applicable at ambient temperature of 25°C. If the temperature is higher than this, the CSA of the cable should
be increased
To prevent the air switching capacity is too large, the load overload does not work. Recommended the capacity of the
air switching is up to 1.5 ~ 2 times of the load peak.
The CSA of the system grounding cables should be consistent with the largest power distribution cables. The CSA
value is no less than 25mm
2
.
AC and DC power distribution interface definition see Table 2-4.
Table 2-4 AC and DC power distribution interface definition
Connector name
Connector specifications
Wiring instructions
AC power
distribution
AC input
MCB
H type terminal, max. cable CSA 50mm
2
(63A < MCB rated current
≤ 125A)
H type terminal, max. cable CSA 25mm
2
(MCB rated current ≤63A)
AC power line
Grounding
busbar
One M8 bolt, OT type wiring terminal, max. cable CSA 35mm
2
Connected to the
grounding bar of the
building
DC power
distribution
Battery
output MCB
H type terminal, max. cable CSA 25mm
2
(MCB rated current ≤63A)
H type terminal, max. cable CSA 50mm
2
(63A < MCB rated current
≤ 125A)
Connected to the battery
port
Negative
output MCB
H type terminal, max. cable CSA 25mm
2
(MCB rated current ≤63A)
H type terminal, max. cable CSA 50mm
2
(63A < MCB rated current
≤ 125A)
Connected to the users
load port
Positive
busbar
Terminal subrack terminal
：
cable CSA ≤ 50mm
2
Connected to the users
load port
2.3 Mechanical Installation
 Note
1. The cabinet or rack the subrack power system installed in must provide fireproof and electric protection casing, or install in
cement or other difficult to burn, at the same time and other combustible materials to keep enough distance.
2. For the convenience of maintenance, users should maintain a clearance of 800mm at the front of the power system.
3. Subrack cannot be installed against the wall, it must leave enough space for heat dissipation.

Vertiv NetSure 531 A91 Specifications

General

Brand	Vertiv
Model	NetSure 531 A91
Category	Power Supply
Language	English