Chapter 2 ETERNUS DX Disk Storage System Installation
2.6 Circuit Protectors
ETERNUS DX60 S2 Disk storage system User’s Guide -Site Planning-
39
Copyright 2012 FUJITSU LIMITED P3AM-5492-04ENZ0

Table 2.11 Power distribution unit (1U) breaking characteristics (Trip time (sec.))

Figure 2.7 Example of a power supply connection using a power distribution unit (1U)

Delay 100% 125% 150% 200% 400% 600% 800% 1000%
200E No Trip 45 to
500
15 to
250
6 to
90
0.7 to
15
0.008 to
5
0.006 to
0.4
0.004 to
0.08
CP
To power supply facility To power supply facility
CP
Power distribution unit
Line 0 Line 1
CE
DE #01
ETERNUS DX Disk storage system
CPCP
CP: Circuit Protector
Distribution
board
Distribution
board
PSU
PSU
PSU
PSU