Idiomas disponibles
Idiomas disponibles
16.1. Symbols on the type plate and power pack
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 ei-
ther 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 polar-
Fig. B
ity: either positive inside and negative outside (Fig. A), or negative
inside and positive outside (Fig. B).
CE labelling
Products that feature this symbol meet the requirements of the EU
directives (see chapter entitled "Declaration of conformity").
Tested safety
Products that feature this symbol meet the requirements of the Ger-
man Product Safety Act.
Symbol for direct current (DC)
Symbol for alternating current (AC)
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-di-
vided into a number of categories, where Level VI is the most effi-
cient.
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