16
Table 3.4 Requirements for power module terminal
Port
Connection
Bolt
Bolt Aperture
Torque Moment
Mains input
Cables crimped
OT terminal
M5
5.8mm
3Nm
M6
7mm
4.9Nm
Bypass Input
Cables crimped
OT terminal
M5
5.8mm
3Nm
M6
7mm
4.9Nm
Battery Input
Cables crimped
OT terminal
M5
5.8mm
3Nm
M6
7mm
4.9Nm
Output
Cables crimped
OT terminal
M5
5.8mm
3Nm
M6
7mm
4.9Nm
PE
Cables crimped
OT terminal
M5
5.8mm
3Nm
M6
7mm
4.9Nm
3.6.3 Circuit Breaker
The circuit breakers (CB) for the system are recommended in Table 3.5.
Table 3.5 Recommended CB
Installed position
10kVA
15kVA
20kVA
30kVA
Battery CB
63A,250Vdc
63A,250Vdc
63A,250Vdc
100A,250Vdc
Attention
The CB with RCD (Residual Current Device) is not suggested for the system.
3.6.4 Connecting Power Cables
The steps of connecting power cables are as follows:
1. Verify that all the switches of the UPS are completely open and the UPS internal
maintenance bypass switch is open. Attach necessary warning signs to these
switches to prevent unauthorized operation.
2. Open the back door of the cabinet, remove the cover. The input and output
terminal, battery terminal and protective earth terminal are shown in Fig.3-9 &Fig.
3-10.
Fig.3-9 connections terminals for 10-20kVA
Summary of Contents for EA990RT G5 10
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