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Understanding the Symbols and Display Icons
VDE Testing and Certification Institute Germany
Manufacturer’s mark (FRIWO) and manufacturing location
(Hong Kong)
Manufacturer’s mark (FRIWO) and manufacturing location
(Geratebau, Germany)
Encapsulated safety isolating transformer (short circuit proof)
Positive Temperature Coefficient (PTC) A thermistor device
used to protect the transformer from short circuits or overload.
This is an auto reset device.
Thermal cut out (TCO) This safety device disconnects the
supply voltage to the transformer at a specific temperature.
The operation temperature is stated below.
Ingress protection rating protected against the entry of solid
objects >1 mm but no protection from liquids.
This symbol indicates a risk of electric shock.
Keep this way up
Fragile, handle with care
Keep dry
Keep away from sunlight and heat
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