ABB UNO-DM-2.0-TL-PLUS - Page 15

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1- Introduction and general information
Symbol Description
5
Indicates a risk of electric shock. Stored energy discharge time: 5 minutes
10
Indicates a risk of electric shock. Stored energy discharge time: 10
minutes
DC
Direct Current
AC
Alternating current
With insulation transformer
Without insulation transformer
Positive pole of the input voltage (DC)
Negative pole of the input voltage (DC)
Indicates the centre of gravity of the equipment.
Indicates the requirement to wear acoustic protection devices in order to
prevent damage to hearing