Notes On Operation; Insulation Testing; Inrush Current; Derating - WAGO 2787-2154 Product Manual

2787-2154

Notes on Operation

11

11.1 Insulation Testing

Before the electrical system is put into operation, insulation testing must be performed.
You can find more detailed information in the following standards, for example:
• DIN VDE 0100-600 VDE 0100-600:2017-06 "Low-voltage electrical installations – Part
6: Verification"
• IEC 60364-6:2016 "Low voltage electrical installations – Part 6: Verification"

11.2 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.

11.3 Derating

The maximum load is a function of the surrounding air temperature and the installation al-
titude.
Information
IN
OUT
Ambient temp.
Different mounting positions may affect the permissible surrounding air temperature for
operation. Please refer to the section

11.3.1 Derating (Temperature-Dependent)

Depending on the surrounding air temperature, it may be necessary to reduce the load.
Temperature Value
T > +60 °C
U
Product manual | Version: 1.0.2
Power Supply Pro 2
Nominal values per UL
100 ... 240 VAC; 1.3 ... 0.6 A; 50 ... 60 Hz
48 ... 56 VDC SELV; 2.5 A; 120 W
−25 ... +70 °C
8 Installation and Removal
Table 64: Derating (Temperature-Dependent)
Derating
−3 %/K (> +60 °C)
Notes on Operation
Table 63: Nominal values per UL
[} 30].
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