UPSI-1208DP2
Revision 1-3
20
E4 Dimensioning the upstream power supply
Ensure that the upstream power supply is correctly dimensioned to guarantee the charging process of the
batteries and the correct functioning of the application. The input must be supplied from a SELV or PELV power
supply. In order to operate the UPSI devices to the maximum, the upstream power supply has to provide at
least the following output currents and voltages.
For UPSI-1208DP2: 10 A / 12 V
If less load than the maximum load is required at the output of the UPSI devices, the voltage supply can be
dimensioned according to the table below (column 3).
UPSI-1208DP2
I
LOAD
[A]
I
CHARGE
[A]
I
IN-MIN
[A]
0
3.5
3.5
1
3.3
4.5
2
3
5
3
2.6
6
4
2.3
6.5
5
1.9
7
6
1.6
8
7
1.3
9
8
1
10
