3 Installation
23
3.2.4 Select Wires
For the wire cross-sectional area of AC input, output and battery please see the
recommended value in Table3-3 Table3-4 and Table3-5. The cross-sectional area of the
following cable is only for reference when the user is connected wire for a length of about 5
meters. If the length of the lead wire exceeds 20 meters, the cross-sectional area of the
conductor wire shall be increased.
For 10kVA-20kVA UPS is set to 31 mode or 11mode, since the UPS is equipped with input and output
three-phase connector, the bypass input and out wires are recommended according to the single wire.
When the UPS is set to 11mode, the UPS is not equipped with the input and output three-phase
connector, thus the AC input wires are recommended according to the three wires. Please notes that
when the UPS is single phase input, the three fire wires need to be connected to the same phase of
power input.
When 30kVA-40kVA UPS is set to 31 mode, bypass input and output wires are recommended as single
wire. When the cross-sectional area of single wire is greater than 35mm
2
, it is recommended to connect
two wires in parallel.
Table3-3
Recommended cross-sectional area of wire (unit: mm
2
, environment temperature:25
℃
)
type
10kVA
15kVA
20kVA
Mode type
33
31
11
33
31
11
33
31
11
AC input live wire
(U/V/W)
4*3
4*3
4*3
6*3
6*3
6*3
10*3 10*3 10*3
AC input neutral wire
(N)
4*1
10*1 10*1
6*1
16*1 16*1
10*1 16*1 16*1
Bypass input live wire
(U/V/W)
4*3
10*1 10*1
6*3
16*1 16*1
10*3 16*1 16*1
AC output live wire
(U/V/W)
4*3
10*1 10*1
6*3
16*1 16*1
10*3 16*1 16*1
AC output neutral
wire (N)
4*1
10*1 10*1
6*1
16*1 16*1
10*1 16*1 16*1
DC input (+/BATN/-)
6*3
6*3
6*3
10*3 10*3 10*3
10*3 10*3 10*3
Grounding wire (PE)
6*1
6*1
6*1
10*1 10*1 10*1
10*1 10*1 10*1
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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