Single-Phase Standard Transformers
These transformers are manufactured to VDE 0570/IEC 61558 and meet the conditions for normal use without special requirements.
The power values listed refer to the version with separate windings and in the case of type series with air duct to the operating position stated.
If transformers are installed in the housing specified in the data sheets the insulation class changes from ta = 40°C/B to ta=25°C/B or the power which can be drawn must be reduced accordingly.
Terminal blocks which are safe from finger-touch are provided for connection.