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Chapter 2 ETERNUS DX Disk Storage System Installation
2.7 Circuit Protectors
ETERNUS DX80 S2/DX90 S2 Disk storage system User’s Guide -Site Planning-
Copyright 2013 FUJITSU LIMITED P3AM-4822-12ENZ0
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● Power distribution unit (2U)
- Power distribution unit for DX80 S2/DX90 S2 (AC200-240V, 2U, Max 6 enclosures connection)
Up to six enclosures can be connected.
- Power distribution unit for DX80 S2/DX90 S2 (AC200-240V, 2U, Max 8 enclosures connection)
Up to eight enclosures can be connected.
Figure 2.7 Power distribution unit (2U)
2.7 Circuit Protectors
Protection coordination must be secured between the distribution board circuit protectors and the ETERNUS
DX Disk storage system or power distribution units to protect the ETERNUS DX Disk storage system by blocking
the failed circuit immediately when a power supply input error occurs.
Distribution board circuit protectors must satisfy the following required conditions and breaking
characteristics.
■ Required conditions
The distribution board circuit protectors must satisfy the required conditions that are listed in Table 2.11.
Table 2.11 Required conditions for distribution board circuit protectors
Output (12 or 16 outlets)
Input (2 sockets)
Connected device
Power supply
voltage
Current capacity
Regions other
than EMEA&I
EMEA&I region
Power distribution unit for DX80 S2/DX90 S2 (AC200-
240V, 1U, Max 2 enclosures connection)
AC200 – 240V 15A —
Power distribution unit for DX80 S2/DX90 S2 (AC200-
240V, 2U, Max 6 enclosures connection)
AC200 – 240V 20A —
Power distribution unit for DX80 S2/DX90 S2 (AC200-
240V, 2U, Max 8 enclosures connection)
AC200 – 240V 30A —
ETERNUS DX Disk storage system
(without power distribution units)
AC100
– 120V
AC200 – 240V
15A 16A