EN – 61
Instruction
• List
Protection class II
Electrical devices in protection class II are devic-
es that have double and/or reinforced insulation
throughout, and do not have the option of con-
necting a protective earth. The housing of an elec-
trical device in protection class II, with surround-
ing 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.
Fig. A
Fig. B
Polarity markings
In the case of devices with coaxial power con-
nectors, these symbols indicate the polarity of the
connector. There are two types of polarity: either
positive inside and negative outside (Fig. A), or
negative inside and positive outside (Fig. B).
For EU mains adapters only:
Tested safety
Products that feature this symbol meet the require-
ments of the German Product Safety Act.
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