2787-2147 (/0000-00x0)
Notes on Operation
Product manual | Version: 1.2.2
63
Power Supply Pro 2
11.3 Inrush Current
High inrush currents can occur if multiple products are supplied through the same circuit
on the input side. In this case, it is advisable to switch the WAGO Power Supply Pro 2 on
with a delay. The corresponding switch-on delay can be parameterized in the Dialog: Set-
tings dialog in the “System” section of the WAGO Interface Configuration software.
The maximum number of products that can be operated in parallel on one circuit is given
by the sum of the leakage currents. According to EN 62368-1, this sun must not exceed
the maximum value of 3.5 mA.
11.4 Derating
The maximum load is a function of the surrounding air temperature and the installation al-
titude.
Table 66: Nominal values per UL
Information
Nominal values per UL
IN
100 … 240 VAC; 5.9 … 2.2 A; 50 … 60 Hz
OUT
24 … 28 VDC SELV; 20 A; 480 W
Ambient temp.
−25 … +70 °C
Different mounting positions may affect the permissible surrounding air temperature for
operation. Please refer to the section
8
.
11.4.1 Derating (Temperature-Dependent)
Depending on the surrounding air temperature, it may be necessary to reduce the load.
Table 67: Derating (Temperature-Dependent)
Temperature Value
Derating
T
U
> +40 °C
−1 %/V (> +40 °C and < 100 VAC)
T
U
> +55 °C
−3 %/K (> +55 °C and < 230 VAC)
T
U
> +60 °C
−3 %/K (> +60 °C and ≥ 230 VAC)
0
4
8
12
16
20
-40
-30
-20
-10
0
10
20
30
40
50
60
70
I
OUT
[A]
T [ °C]
< 230 VAC
≥ 230 VAC
Figure 37: Derating (Temperature-Dependent)
