Silvercrest SLA 90 A1 Operation And Safety Notes page 28

V
V
Hz
W
28 GB/IE
Use product only in dry indoor
areas.
Polarity of the power supply unit.
Safety class II The product
has double insulation and no
safety connection with grounding
is required.
Voltage (alternating current)
Voltage (direct current)
Hertz (power frequency)
Watt (power)