Wels, July 20th 2018
CONFORMITY VDE-AR-N-4105 INTERFACE-PROTECTION FRONIUS
INVERTERS
Fronius International GmbH
hereby confirms that the Fronius inverters
/ Fronius Primo 3.0-1 – 8.2-1
/ Fronius Galvo 1.5-1 – 3.1-1
/ Fronius Symo 3.0-3-M – 20.0-3-M
/ Fronius Symo Hybrid 3.0-3-S – 5.0-3-S
/ Fronius Eco 25.0 – 27.0
are equipped with an interface protection meeting the requirements according to the German low voltage directive
VDE-AR-N 4105 when set to Setup DE1, DE2 or DE3. This is tested and certified by the German test- and
certification body VDE and recorded by the corresponding certificates.
The following setting values and trip times are configured in the Setups mentioned above:
Setting value Trip Time
undervoltage protection U< 184 V 100 ms
overvoltage protection U>* 253 V 100 ms
overvoltage protection U>> 264 V 100 ms
underfrequency protection f< 47,5 Hz 100 ms
overfrequency protection f> 51,5 Hz 100 ms
*10-minute running mean value according to DIN EN 50160
Island detection is carried out by means of a frequency shift method.
It is hereby confirmed that the specific requirements of DIN V VDE V 0126-1-1:2006-02 +A1:2011-06 have been
tested and recorded by the corresponding certificates.
Fronius International GmbH
Business Unit Solar Energy
Froniusplatz 1
A-4600 Wels
DI Dr. Martin Heidl
Head of Systems Technology
02/2017
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