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3Installation User Manual
18
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Select Input Breaker
We suggest to add a breaker (we suggest to select the breaker with feedback double pole disconnection
equipment) or distribution cabinet that matches the UPS power at the front of the UPS input to insulate
the mains. Considering the UPS charge power and the impact current while power on, the selected
breaker must be 1.5 to 2 times of UPS input max. current, and cannot with leakage protection, which
is to avoid wrong action of breaker. The distribution box should be manufactured by professional
company. The selection of breaker please2032624074.26.264318872 . .
Recommended input breaker list
10kVA 15kVA 20/25kVA
33
mode
31
mode
11
mode
33
mode
31
mode
11
mode
33
mode
31
mode
11
mode
AC input (A)
32*3P 32*3P 63*1P 50*3P 50*3P 100*1P 63*3P 63*3P 125*1P
Bypass input (A)
32*3P 63*1P 63*1P 50*3P 100*1P 100*1P 63*3P 125*1P 125*1P
DC input (A)
50*3P 50*3P 50*3P 63*3P 63*3P 63*3P 80*3P 80*3P 80*3P
AC output (A)
32*3P 63*1P 63*1P 50*3P 100*1P 100*1P 63*3P 125*1P 125*1P
3.2.2 Select Wires
For the wire cross-sectional area of AC input, output and battery please see the recommended value in
2032624074.26.264318872 . , 2032624074.26.264318872 . and choose upwards.
When the UPS set to 31 mode or 11 mode, we provide three-phase short copper bar of bypass input
and output, so for the specification of bypass input and output wire, we take single wire as standard to
recommend. When the UPS set to 11 mode, we do not provide short copper bar of three-phase input,
so, for the specification of AC input wire, we take three wires as standard to recommend. Please pay
attention to that the three live wires needs to connect with the same mains input when the UPS is set to
single-phase input.
Recommended cross-sectional area of wire (unit: mm
2
, environment temperature:25
℃
)
10kVA 15kVA 20/25kVA
33
mode
31
mode
11
mode
33
mode
31
mode
11
mode
33
mode
31
mode
11
mode
AC input live wire
4*3 4*3 4*3 6*3 6*3 6*3 10*3 10*3 10*3