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Chapter 2 Installation 13
E1-20010329-C-1.0
Figure 2-5 （b） wrong cable connection
Warning
Classified according to European standard EN55022 , this is an A level UPS product.
When it is used in family house, it may generate radio interference, user should take
other measures in this condition.
2.3.2 Installation Procedure
1. Prior to any wire connection, please confirm that all the input and output circuit
breakers are in “OFF”state;
2. As shown in Figure 2-6, connect the input cables
（
three hot lines, neutral line and
earth line
）
to the correspondent terminals and secure the screw;
Note
Please do not reverse connection of the input hot line and neutral line！
Because the input default configuration of system's U phase is bypass input, please
ensure the proper connection of U phase.
Please don't use the power source socket on the wall as the UPS' input source.
3. Connect the input cables （hot lines, neutral line and earth line）of user's equipment
to the correspondent UPS output terminals refer , figure 2-6 .
Note
When connecting the input and output cables, the input hot line and neutral line must
be connected correctly and the UPS must be connected to earth firmly.
Input hot
line
Input neutral
line
U
P
S
Load
N/E
U
W
V
output hot
line
output
neutral line