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3-22 SPARC Enterprise M8000/M9000 Servers Site Planning Guide • April 2008
3.4.2.2 Blockade Character of Circuit Breaker
The blockade character of the circuit breaker is long-time delay type. Use a circuit
breaker which is equivalent to, or slower than, blockade character D (IEC898 or
DIN0651 part II) of
FIGURE 3-10.
FIGURE 3-10 Circuit Breaker Characteristics of Customers' Power Distribution Boards
DCB
1 2 3 4 5 6 78 10 20 30 40 50 80 1001.5 15
0.01
0.02
0.04
0.06
0.1
0.2
0.4
0.6
1
2
4
6
10
20
40
1
2
4
6
10
60
40
20
120
180
Operating time
Minute
Second
Current (scaled in relation to rated current)