AEC IST5015 - Power Cables

Installation Instruction
16 IST5 Tower UPS 10kVA~40kVA User Manual
Battery Input
Battery Input current(A)
20/30A
40/60A
80A
Cable Section
（mm²）
+
8
16
25
-
8
16
25
N
8
16
25
PE
Cable Section
（mm²）
PE
6
10
16
Note
The recommended cable section for power cables are only for situations described below：
Ambient temperature：30℃.
AC loss less than 3%，DC loss less than 1%，The length of the AC power cables are no
longer than 50 m and the length of the DC power cables are no longer than 30 m.
Currents listed in the table are based on the 208V system (Line-to-line voltage).
The size of neutral lines should be 1.5~1.7 times the value listed above when the predominant
load is non-linear.
3.6.2 Specifications for Power Cables Terminal
Specifications for power cables connector are listed as Table 3.3.
Table 3.3 Requirements for power module terminal
Port
Connection
Bolt
Bolt Aperture
Torque
Moment
Mains input
Cables crimped
OT terminal
M6
7mm
4.9Nm
Bypass Input
Cables crimped
OT terminal
M6
7mm
4.9Nm
Battery Input
Cables crimped
OT terminal
M6
7mm
4.9Nm
Output
Cables crimped
OT terminal
M6
7mm
4.9Nm
PE
Cables crimped
OT terminal
M6
7mm
4.9Nm
3.6.3 Circuit Breaker
The circuit breakers (CB) for the system are recommended in Table 3.4.
Table 3.4 Recommended CB
Installed position
10/15kVA
20kVA
30kVA
40kVA
Battery CB
32A,250Vdc
50A,250Vdc
63A,250Vdc
100A,250Vdc
Attention
The CB with RCD (Residual Current Device) is not suggested for the system.