3 Installation
21
Tools
3.2.2 Select Breaker&Wires
The selecting for AC input and output wire, DC input wire and corresponding breakers needs
to be judged by the UPS' max. steady state phase current. Table3-1 shows the max. steady
state phase current of each work mode, Table3-2 shows the rated current of recommended
breakers, Table3-3 shows the min. recommended wire cross-sectional area. Select the wires
and breakers according toTable3-1, Table3-2, Table3-3.
Table3-1
UPS max. steady state phase current
type
10kVA
15kVA
20kVA
30kVA
40kVA
Mode type
33
31
11
33
31
11
33
31
11
33
31
33
31
AC input(A)
18
18
54
26
26
78
35
35
10
59
59
75
75
Summary of Contents for IST9
Page 1: ...l un I Jet _________ __ AEC IST9 1 0 20 https www uni jet com catalog ibp on line ibp aec ist9...
Page 2: ...UPS IST9 10 20 kVA User Manual...
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Page 52: ...3 Installation 43 Figure3 29 Diagram of 33 mode parallel system wiring of 10kVA 20kVA UPS...
Page 54: ...3 Installation 45 Figure3 31 Diagram of 33 mode parallel system wiring of 30kVA 40kVA UPS...
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