Tested safety
BUREAU
VERITAS
Products that feature this symbol meet the requirements of the
German Product Safety Act.
Symbol for direct current (DC)
Symbol for alternating current (AC)
Protection class II
Electrical devices in protection class II are devices that have double
and/or reinforced insulation throughout and do not have the option
of connecting a protective earth. The housing of an electrical device
in protection class II, with surrounding insulating material, might
either form all of the additional or reinforced insulation, or part of it.
Indoor use
Devices with this symbol are intended solely for indoor use.
Polarity markings
Fig. A
In the case of devices with coaxial power connectors, these symbols
indicate the polarity of the connector. There are two types of
Fig. B
polarity: either positive inside and negative outside (Fig. A), or
negative inside and positive outside (Fig. B).
Energy efficiency level VI
Energy efficiency levels are used to describe the efficiency levels of
internal and external power supply units. Energy efficiency is sub-
divided into a number of categories, where Level VI is the most
efficient.
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Bullet point/information on steps during operation
Instruction to be carried out
Safety instructions to be performed
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