2. SAFETY INSTRUCTIONS
2.1. Explanation of symbols
Symbol
Image 1
+
Image 2
-
VI
78
EN
meaning
For devices with coaxial plugs, these
symbols indicate the polarity of the
-
plug.
A distinction is made between 2
variants
Fig 1: Outside plus/ Inside minus
+
Image 2: Inside plus / outside minus
Devices with this symbol may only
be operated indoors in a dry environ-
ment
Energy efficiency class.
This symbol provides information
about the energy class of this device
according to the provisions of the EU
Eco Design Directive.